diff --git a/admin/src/Routes.tsx b/admin/src/Routes.tsx
index 3a670359..69dcf36b 100644
--- a/admin/src/Routes.tsx
+++ b/admin/src/Routes.tsx
@@ -18,6 +18,7 @@ import RFPDetail from 'components/RFPDetail';
 import Contributions from 'components/Contributions';
 import ContributionForm from 'components/ContributionForm';
 import ContributionDetail from 'components/ContributionDetail';
+import Moderation from 'components/Moderation';
 
 import 'styles/style.less';
 
@@ -49,6 +50,7 @@ class Routes extends React.Component<Props> {
             <Route path="/contributions/:id" component={ContributionDetail} />
             <Route path="/contributions" component={Contributions} />
             <Route path="/emails/:type?" component={Emails} />
+            <Route path="/moderation" component={Moderation} />
           </Switch>
         )}
       </Template>
diff --git a/admin/src/components/Moderation/ModerationItem.less b/admin/src/components/Moderation/ModerationItem.less
new file mode 100644
index 00000000..f7196bb4
--- /dev/null
+++ b/admin/src/components/Moderation/ModerationItem.less
@@ -0,0 +1,8 @@
+.ModerationItem {
+  & .ant-list-item-meta-title {
+    & small {
+      color: #868686;
+      font-weight: normal;
+    }
+  }
+}
diff --git a/admin/src/components/Moderation/ModerationItem.tsx b/admin/src/components/Moderation/ModerationItem.tsx
new file mode 100644
index 00000000..df80e311
--- /dev/null
+++ b/admin/src/components/Moderation/ModerationItem.tsx
@@ -0,0 +1,81 @@
+import React from 'react';
+import { view } from 'react-easy-state';
+import store from 'src/store';
+import { Popconfirm, List, Avatar, Icon, message } from 'antd';
+import { Link } from 'react-router-dom';
+import { Comment } from 'src/types';
+import { formatDateSeconds } from 'util/time';
+import Markdown from '../Markdown';
+import ShowMore from 'components/ShowMore';
+import './ModerationItem.less';
+
+class ModerationItem extends React.Component<Comment> {
+  render() {
+    const p = this.props;
+    const avatarUrl = (p.author!.avatar && p.author!.avatar!.imageUrl) || undefined;
+    const actions = [
+      <Popconfirm
+        key="toggleHide"
+        onConfirm={this.handleHide}
+        title={`${
+          p.hidden ? 'Show' : 'Hide'
+        } the content of this comment on public view?`}
+        okText={p.hidden ? 'Show' : 'Hide'}
+        okType="primary"
+        placement="left"
+      >
+        <a>{p.hidden ? 'show' : 'hide'}</a>
+      </Popconfirm>,
+    ];
+
+    return (
+      <List.Item className="ModerationItem" actions={actions}>
+        <List.Item.Meta
+          avatar={<Avatar icon="user" src={avatarUrl} shape="square" />}
+          title={
+            <>
+              <Link to={`/users/${p.author!.userid}`}>{p.author!.displayName}</Link>{' '}
+              <small>commented on</small>{' '}
+              <Link to={`/proposals/${p.proposalId}`}>
+                {p.proposal && p.proposal.title}
+              </Link>{' '}
+              <small>at {formatDateSeconds(p.dateCreated)}</small>{' '}
+              {p.hidden && (
+                <>
+                  <Icon type="eye-invisible" />{' '}
+                </>
+              )}
+              {p.reported && (
+                <>
+                  <Icon type="flag" />{' '}
+                </>
+              )}
+            </>
+          }
+          description={
+            <ShowMore height={100}>
+              <Markdown source={p.content} />
+            </ShowMore>
+          }
+        />
+      </List.Item>
+    );
+  }
+  private handleHide = async () => {
+    await store.updateComment(this.props.id, { hidden: !this.props.hidden });
+    if (store.commentSaved) {
+      message.success(
+        <>
+          <b>
+            {this.props.author!.displayName}
+            's
+          </b>{' '}
+          comment on <b>{this.props.proposal!.title}</b>{' '}
+          {this.props.hidden ? 'hidden' : 'now visible'}
+        </>,
+      );
+    }
+  };
+}
+
+export default view(ModerationItem);
diff --git a/admin/src/components/Moderation/index.tsx b/admin/src/components/Moderation/index.tsx
new file mode 100644
index 00000000..d53d0964
--- /dev/null
+++ b/admin/src/components/Moderation/index.tsx
@@ -0,0 +1,29 @@
+import React from 'react';
+import { view } from 'react-easy-state';
+import store from 'src/store';
+import ModerationItem from './ModerationItem';
+import Pageable from 'components/Pageable';
+import { Comment } from 'src/types';
+import { commentFilters } from 'src/util/filters';
+
+class Moderation extends React.Component<{}> {
+  render() {
+    const { page } = store.comments;
+    // NOTE: sync with /backend ... pagination.py ProposalCommentPagination.SORT_MAP
+    const sorts = ['CREATED:DESC', 'CREATED:ASC'];
+    return (
+      <Pageable
+        page={page}
+        filters={commentFilters}
+        sorts={sorts}
+        searchPlaceholder="Search comment content"
+        renderItem={(p: Comment) => <ModerationItem key={p.id} {...p} />}
+        handleSearch={store.fetchComments}
+        handleChangeQuery={store.setCommentPageParams}
+        handleResetQuery={store.resetCommentPageParams}
+      />
+    );
+  }
+}
+
+export default view(Moderation);
diff --git a/admin/src/components/Pageable/index.tsx b/admin/src/components/Pageable/index.tsx
index b562c40f..accbbbf4 100644
--- a/admin/src/components/Pageable/index.tsx
+++ b/admin/src/components/Pageable/index.tsx
@@ -10,7 +10,7 @@ import './index.less';
 
 interface OwnProps<T> {
   page: PageData<T>;
-  filters: Filters;
+  filters: null | Filters;
   sorts: string[];
   searchPlaceholder?: string;
   controlsExtra?: React.ReactNode;
@@ -39,7 +39,7 @@ class Pageable<T> extends React.Component<Props<T>, {}> {
     } = this.props;
     const loading = !page.fetched || page.fetching;
 
-    const statusFilterMenu = (
+    const statusFilterMenu = filters && (
       <Menu onClick={this.handleFilterClick}>
         {filters.list.map(f => (
           <Menu.Item key={f.id}>{f.display}</Menu.Item>
@@ -63,11 +63,13 @@ class Pageable<T> extends React.Component<Props<T>, {}> {
             placeholder={searchPlaceholder}
             onSearch={this.handleSearch}
           />
-          <Dropdown overlay={statusFilterMenu} trigger={['click']}>
-            <Button>
-              Filter <Icon type="down" />
-            </Button>
-          </Dropdown>
+          {filters && (
+            <Dropdown overlay={statusFilterMenu} trigger={['click']}>
+              <Button>
+                Filter <Icon type="down" />
+              </Button>
+            </Dropdown>
+          )}
           <Dropdown overlay={sortMenu} trigger={['click']}>
             <Button>
               {'Sort ' + page.sort} <Icon type="down" />
@@ -86,29 +88,30 @@ class Pageable<T> extends React.Component<Props<T>, {}> {
           </div>
         )}
 
-        {!!page.filters.length && (
-          <div className="Pageable-filters">
-            Filters:{' '}
-            {page.filters.map(fId => {
-              const f = filters.getById(fId);
-              return (
-                <Tag
-                  key={fId}
-                  onClose={() => this.handleFilterClose(fId)}
-                  color={f.color}
-                  closable
-                >
-                  {f.display}
+        {filters &&
+          !!page.filters.length && (
+            <div className="Pageable-filters">
+              Filters:{' '}
+              {page.filters.map(fId => {
+                const f = filters.getById(fId);
+                return (
+                  <Tag
+                    key={fId}
+                    onClose={() => this.handleFilterClose(fId)}
+                    color={f.color}
+                    closable
+                  >
+                    {f.display}
+                  </Tag>
+                );
+              })}
+              {page.filters.length > 1 && (
+                <Tag key="clear" onClick={this.handleFilterClear}>
+                  clear
                 </Tag>
-              );
-            })}
-            {page.filters.length > 1 && (
-              <Tag key="clear" onClick={this.handleFilterClear}>
-                clear
-              </Tag>
-            )}
-          </div>
-        )}
+              )}
+            </div>
+          )}
 
         <List
           className="Pageable-list"
diff --git a/admin/src/components/RFPForm/index.tsx b/admin/src/components/RFPForm/index.tsx
index 9c0abb02..0726a4a4 100644
--- a/admin/src/components/RFPForm/index.tsx
+++ b/admin/src/components/RFPForm/index.tsx
@@ -3,7 +3,19 @@ import moment from 'moment';
 import { view } from 'react-easy-state';
 import { RouteComponentProps, withRouter } from 'react-router';
 import { Link } from 'react-router-dom';
-import { Form, Input, Select, Icon, Button, message, Spin, Checkbox, Row, Col, DatePicker } from 'antd';
+import {
+  Form,
+  Input,
+  Select,
+  Icon,
+  Button,
+  message,
+  Spin,
+  Checkbox,
+  Row,
+  Col,
+  DatePicker,
+} from 'antd';
 import Exception from 'ant-design-pro/lib/Exception';
 import { FormComponentProps } from 'antd/lib/form';
 import { PROPOSAL_CATEGORY, RFP_STATUS, RFPArgs } from 'src/types';
@@ -70,7 +82,7 @@ class RFPForm extends React.Component<Props, State> {
         return <Exception type="404" desc="This RFP does not exist" />;
       }
     }
-    
+
     const dateCloses = isFieldsTouched(['dateCloses'])
       ? getFieldValue('dateCloses')
       : defaults.dateCloses && moment(defaults.dateCloses * 1000);
@@ -100,7 +112,9 @@ class RFPForm extends React.Component<Props, State> {
         {rfpId && (
           <Form.Item
             label="Status"
-            help={forceClosed && 'Status is forced to "Closed" when close date is in the past'}
+            help={
+              forceClosed && 'Status is forced to "Closed" when close date is in the past'
+            }
           >
             {getFieldDecorator('status', {
               initialValue: defaults.status,
@@ -214,10 +228,10 @@ class RFPForm extends React.Component<Props, State> {
               help="Date that proposals will stop being submittable by"
             >
               {getFieldDecorator('dateCloses', {
-                initialValue: defaults.dateCloses ? moment(defaults.dateCloses * 1000) : undefined,
-              })(
-                <DatePicker size="large" />
-              )}
+                initialValue: defaults.dateCloses
+                  ? moment(defaults.dateCloses * 1000)
+                  : undefined,
+              })(<DatePicker size="large" />)}
             </Form.Item>
           </Col>
         </Row>
diff --git a/admin/src/components/ShowMore/index.less b/admin/src/components/ShowMore/index.less
new file mode 100644
index 00000000..6bd9690a
--- /dev/null
+++ b/admin/src/components/ShowMore/index.less
@@ -0,0 +1,14 @@
+.ShowMore {
+  overflow: hidden;
+  position: relative;
+
+  &-controls {
+    position: absolute;
+    bottom: -0.3rem;
+    left: 0;
+    right: 0;
+    text-align: center;
+    font-size: 0.8rem;
+    background: linear-gradient(to bottom, rgba(255, 255, 255, 0), #ffffff, #ffffff);
+  }
+}
diff --git a/admin/src/components/ShowMore/index.tsx b/admin/src/components/ShowMore/index.tsx
new file mode 100644
index 00000000..efae6d44
--- /dev/null
+++ b/admin/src/components/ShowMore/index.tsx
@@ -0,0 +1,73 @@
+import React from 'react';
+import './index.less';
+
+interface Props {
+  height: number;
+  units?: 'px' | 'rem';
+}
+
+const STATE = {
+  isOverflowing: false,
+  isShowing: false,
+  hasChecked: false,
+};
+type State = typeof STATE;
+
+// very basic "show more" wrapper component, doesn't yet support
+// - window resize height changes
+// - using the parent or natural height as the desired height
+export class ShowMore extends React.Component<Props, State> {
+  state = STATE;
+  wrapper: null | HTMLDivElement = null;
+  componentDidMount() {
+    this.updateOverflow();
+  }
+  componentDidUpdate(_: Props, s: State) {
+    const isShowingChange = s.isShowing !== this.state.isShowing;
+    const reset = !isShowingChange && (s.hasChecked && this.state.hasChecked);
+    const mustCheck = s.hasChecked && !this.state.hasChecked;
+    if (reset) {
+      this.setState(STATE);
+    }
+    if (mustCheck) {
+      this.updateOverflow();
+    }
+  }
+  render() {
+    const p = this.props;
+    const s = this.state;
+    const maxHeight = `${p.height}${p.units || 'px'}`;
+    const style = !s.hasChecked || (s.isOverflowing && !s.isShowing) ? { maxHeight } : {};
+
+    return (
+      <div style={style} className="ShowMore" ref={d => (this.wrapper = d)}>
+        {p.children}
+        {s.isOverflowing &&
+          !s.isShowing && (
+            <div className="ShowMore-controls">
+              <a onClick={() => this.setState({ isShowing: true })}>show more</a>
+            </div>
+          )}
+        {s.isOverflowing &&
+          s.isShowing && (
+            <div className="ShowMore-controls">
+              <a onClick={() => this.setState({ isShowing: false })}>hide</a>
+            </div>
+          )}
+      </div>
+    );
+  }
+  private updateOverflow = () => {
+    const w = this.wrapper;
+    if (!w) return;
+    // natural hight is ok
+    if (w.clientHeight < this.props.height) {
+      this.setState({ isOverflowing: false, hasChecked: true });
+      return;
+    }
+    // tall, let us check...
+    this.setState({ isOverflowing: w.scrollHeight > w.clientHeight, hasChecked: true });
+  };
+}
+
+export default ShowMore;
diff --git a/admin/src/components/Template/index.tsx b/admin/src/components/Template/index.tsx
index a1e8cb4d..4a7f0205 100644
--- a/admin/src/components/Template/index.tsx
+++ b/admin/src/components/Template/index.tsx
@@ -69,6 +69,12 @@ class Template extends React.Component<Props> {
                 <span className="nav-text">Emails</span>
               </Link>
             </Menu.Item>
+            <Menu.Item key="moderation">
+              <Link to="/moderation">
+                <Icon type="message" />
+                <span className="nav-text">Moderation</span>
+              </Link>
+            </Menu.Item>
             <Menu.Item key="logout" onClick={store.logout}>
               <Icon type="logout" />
               <span className="nav-text">Logout</span>
diff --git a/admin/src/store.ts b/admin/src/store.ts
index 67eb82a6..82bb6c58 100644
--- a/admin/src/store.ts
+++ b/admin/src/store.ts
@@ -11,6 +11,7 @@ import {
   EmailExample,
   PageQuery,
   PageData,
+  CommentArgs,
 } from './types';
 
 // API
@@ -100,6 +101,16 @@ async function approveProposal(id: number, isApprove: boolean, rejectReason?: st
   return data;
 }
 
+async function fetchComments(params: Partial<PageQuery>) {
+  const { data } = await api.get('/admin/comments', { params });
+  return data;
+}
+
+async function updateComment(id: number, args: Partial<CommentArgs>) {
+  const { data } = await api.put(`/admin/comments/${id}`, args);
+  return data;
+}
+
 async function markMilestonePaid(proposalId: number, milestoneId: number, txId: string) {
   const { data } = await api.put(
     `/admin/proposals/${proposalId}/milestone/${milestoneId}/paid`,
@@ -200,6 +211,12 @@ const app = store({
   proposalDetailApproving: false,
   proposalDetailMarkingMilestonePaid: false,
 
+  comments: {
+    page: createDefaultPageData<Comment>('CREATED:DESC'),
+  },
+  commentSaving: false,
+  commentSaved: false,
+
   rfps: [] as RFP[],
   rfpsFetching: false,
   rfpsFetched: false,
@@ -285,40 +302,15 @@ const app = store({
   // Users
 
   async fetchUsers() {
-    app.users.page.fetching = true;
-    try {
-      const page = await fetchUsers(app.getUserPageQuery());
-      app.users.page = {
-        ...app.users.page,
-        ...page,
-        fetched: true,
-      };
-    } catch (e) {
-      handleApiError(e);
-    }
-    app.users.page.fetching = false;
+    return await pageFetch(app.users, fetchUsers);
   },
 
-  getUserPageQuery() {
-    return pick(app.users.page, ['page', 'search', 'filters', 'sort']) as PageQuery;
-  },
-
-  setUserPageQuery(query: Partial<PageQuery>) {
-    // sometimes we need to reset page to 1
-    if (query.filters || query.search) {
-      query.page = 1;
-    }
-    app.users.page = {
-      ...app.users.page,
-      ...query,
-    };
+  setUserPageQuery(params: Partial<PageQuery>) {
+    setPageParams(app.users, params);
   },
 
   resetUserPageQuery() {
-    app.users.page.page = 1;
-    app.users.page.search = '';
-    app.users.page.sort = 'CREATED:DESC';
-    app.users.page.filters = [];
+    resetPageParams(app.users);
   },
 
   async fetchUserDetail(id: number) {
@@ -404,40 +396,15 @@ const app = store({
   // Proposals
 
   async fetchProposals() {
-    app.proposals.page.fetching = true;
-    try {
-      const page = await fetchProposals(app.getProposalPageQuery());
-      app.proposals.page = {
-        ...app.proposals.page,
-        ...page,
-        fetched: true,
-      };
-    } catch (e) {
-      handleApiError(e);
-    }
-    app.proposals.page.fetching = false;
+    return await pageFetch(app.proposals, fetchProposals);
   },
 
-  setProposalPageQuery(query: Partial<PageQuery>) {
-    // sometimes we need to reset page to 1
-    if (query.filters || query.search) {
-      query.page = 1;
-    }
-    app.proposals.page = {
-      ...app.proposals.page,
-      ...query,
-    };
-  },
-
-  getProposalPageQuery() {
-    return pick(app.proposals.page, ['page', 'search', 'filters', 'sort']) as PageQuery;
+  setProposalPageQuery(params: Partial<PageQuery>) {
+    setPageParams(app.proposals, params);
   },
 
   resetProposalPageQuery() {
-    app.proposals.page.page = 1;
-    app.proposals.page.search = '';
-    app.proposals.page.sort = 'CREATED:DESC';
-    app.proposals.page.filters = [];
+    resetPageParams(app.proposals);
   },
 
   async fetchProposalDetail(id: number) {
@@ -505,6 +472,33 @@ const app = store({
     app.proposalDetailMarkingMilestonePaid = false;
   },
 
+  // Comments
+
+  async fetchComments() {
+    return await pageFetch(app.comments, fetchComments);
+  },
+
+  setCommentPageParams(params: Partial<PageQuery>) {
+    setPageParams(app.comments, params);
+  },
+
+  resetCommentPageParams() {
+    resetPageParams(app.comments);
+  },
+
+  async updateComment(id: number, args: Partial<CommentArgs>) {
+    app.commentSaving = true;
+    app.commentSaved = false;
+    try {
+      await updateComment(id, args);
+      app.commentSaved = true;
+      await app.fetchComments();
+    } catch (e) {
+      handleApiError(e);
+    }
+    app.commentSaving = false;
+  },
+
   // Email
 
   async getEmailExample(type: string) {
@@ -573,45 +567,15 @@ const app = store({
   // Contributions
 
   async fetchContributions() {
-    app.contributions.page.fetching = true;
-    try {
-      const page = await getContributions(app.getContributionPageQuery());
-      app.contributions.page = {
-        ...app.contributions.page,
-        ...page,
-        fetched: true,
-      };
-    } catch (e) {
-      handleApiError(e);
-    }
-    app.contributions.page.fetching = false;
+    return await pageFetch(app.contributions, getContributions);
   },
 
-  setContributionPageQuery(query: Partial<PageQuery>) {
-    // sometimes we need to reset page to 1
-    if (query.filters || query.search) {
-      query.page = 1;
-    }
-    app.contributions.page = {
-      ...app.contributions.page,
-      ...query,
-    };
-  },
-
-  getContributionPageQuery() {
-    return pick(app.contributions.page, [
-      'page',
-      'search',
-      'filters',
-      'sort',
-    ]) as PageQuery;
+  setContributionPageQuery(params: Partial<PageQuery>) {
+    setPageParams(app.contributions, params);
   },
 
   resetContributionPageQuery() {
-    app.contributions.page.page = 1;
-    app.contributions.page.search = '';
-    app.contributions.page.sort = 'CREATED:DESC';
-    app.contributions.page.filters = [];
+    resetPageParams(app.contributions);
   },
 
   async fetchContributionDetail(id: number) {
@@ -674,6 +638,49 @@ function createDefaultPageData<T>(sort: string): PageData<T> {
   };
 }
 
+type FNFetchPage = (params: PageQuery) => Promise<any>;
+interface PageParent<T> {
+  page: PageData<T>;
+}
+
+async function pageFetch<T>(ref: PageParent<T>, fetch: FNFetchPage) {
+  ref.page.fetching = true;
+  try {
+    const params = getPageParams(ref.page);
+    const newPage = await fetch(params);
+    ref.page = {
+      ...ref.page,
+      ...newPage,
+      fetched: true,
+    };
+  } catch (e) {
+    handleApiError(e);
+  }
+  ref.page.fetching = false;
+}
+
+function getPageParams<T>(page: PageData<T>) {
+  return pick(page, ['page', 'search', 'filters', 'sort']) as PageQuery;
+}
+
+function setPageParams<T>(ref: PageParent<T>, query: Partial<PageQuery>) {
+  // sometimes we need to reset page to 1
+  if (query.filters || query.search) {
+    query.page = 1;
+  }
+  ref.page = {
+    ...ref.page,
+    ...query,
+  };
+}
+
+function resetPageParams<T>(ref: PageParent<T>) {
+  ref.page.page = 1;
+  ref.page.search = '';
+  ref.page.sort = 'CREATED:DESC';
+  ref.page.filters = [];
+}
+
 // Attach to window for inspection
 (window as any).appStore = app;
 
diff --git a/admin/src/types.ts b/admin/src/types.ts
index 1b7bf6ca..09ea6146 100644
--- a/admin/src/types.ts
+++ b/admin/src/types.ts
@@ -104,7 +104,6 @@ export interface Proposal {
   currentMilestone?: Milestone;
   team: User[];
   comments: Comment[];
-  contractStatus: string;
   target: string;
   contributed: string;
   funded: string;
@@ -114,11 +113,19 @@ export interface Proposal {
   arbiter: ProposalArbiter;
 }
 export interface Comment {
-  commentId: string;
+  id: number;
+  userId: User['userid'];
+  author?: User;
   proposalId: Proposal['proposalId'];
   proposal?: Proposal;
   dateCreated: number;
   content: string;
+  hidden: boolean;
+  reported: boolean;
+}
+export interface CommentArgs {
+  hidden: boolean;
+  reported: boolean;
 }
 // NOTE: sync with backend/utils/enums.py
 export enum CONTRIBUTION_STATUS {
diff --git a/admin/src/util/filters.ts b/admin/src/util/filters.ts
index 6813ac27..7edb85ec 100644
--- a/admin/src/util/filters.ts
+++ b/admin/src/util/filters.ts
@@ -120,3 +120,24 @@ export const userFilters: Filters = {
   list: USER_FILTERS,
   getById: getFilterById(USER_FILTERS),
 };
+
+// Comment
+const COMMENT_FILTERS = [
+  {
+    id: `REPORTED`,
+    display: `Reported`,
+    color: '#ffaa00',
+    group: 'Misc',
+  },
+  {
+    id: `HIDDEN`,
+    display: `Hidden`,
+    color: '#bebebe',
+    group: 'Misc',
+  },
+];
+
+export const commentFilters = {
+  list: COMMENT_FILTERS,
+  getById: getFilterById(COMMENT_FILTERS),
+};
diff --git a/backend/grant/admin/views.py b/backend/grant/admin/views.py
index 15f49ac4..0303625c 100644
--- a/backend/grant/admin/views.py
+++ b/backend/grant/admin/views.py
@@ -3,7 +3,7 @@ from flask import Blueprint, request
 from flask_yoloapi import endpoint, parameter
 from decimal import Decimal
 from datetime import datetime
-from grant.comment.models import Comment, user_comments_schema
+from grant.comment.models import Comment, user_comments_schema, admin_comments_schema, admin_comment_schema
 from grant.email.send import generate_email, send_email
 from grant.extensions import db
 from grant.proposal.models import (
@@ -575,3 +575,47 @@ def edit_contribution(contribution_id, proposal_id, user_id, status, amount, tx_
 
     db.session.commit()
     return proposal_contribution_schema.dump(contribution), 200
+
+
+# Comments
+
+
+@blueprint.route('/comments', methods=['GET'])
+@endpoint.api(
+    parameter('page', type=int, required=False),
+    parameter('filters', type=list, required=False),
+    parameter('search', type=str, required=False),
+    parameter('sort', type=str, required=False)
+)
+@admin_auth_required
+def get_comments(page, filters, search, sort):
+    filters_workaround = request.args.getlist('filters[]')
+    page = pagination.comment(
+        page=page,
+        filters=filters_workaround,
+        search=search,
+        sort=sort,
+        schema=admin_comments_schema
+    )
+    return page
+
+
+@blueprint.route('/comments/<comment_id>', methods=['PUT'])
+@endpoint.api(
+    parameter('hidden', type=bool, required=False),
+    parameter('reported', type=bool, required=False),
+)
+@admin_auth_required
+def edit_comment(comment_id, hidden, reported):
+    comment = Comment.query.filter(Comment.id == comment_id).first()
+    if not comment:
+        return {"message": "No comment matching that id"}, 404
+
+    if hidden is not None:
+        comment.hide(hidden)
+
+    if reported is not None:
+        comment.report(reported)
+
+    db.session.commit()
+    return admin_comment_schema.dump(comment)
diff --git a/backend/grant/comment/models.py b/backend/grant/comment/models.py
index f50c1d4c..4fca9241 100644
--- a/backend/grant/comment/models.py
+++ b/backend/grant/comment/models.py
@@ -1,9 +1,12 @@
 import datetime
 
+from functools import reduce
 from grant.extensions import ma, db
-from grant.utils.misc import dt_to_unix
+from grant.utils.ma_fields import UnixDate
 from sqlalchemy.orm import raiseload
 
+HIDDEN_CONTENT = '~~comment removed by admin~~'
+
 
 class Comment(db.Model):
     __tablename__ = "comment"
@@ -11,6 +14,8 @@ class Comment(db.Model):
     id = db.Column(db.Integer(), primary_key=True)
     date_created = db.Column(db.DateTime)
     content = db.Column(db.Text, nullable=False)
+    hidden = db.Column(db.Boolean, nullable=False, default=False, server_default=db.text("FALSE"))
+    reported = db.Column(db.Boolean, nullable=True, default=False, server_default=db.text("FALSE"))
 
     parent_comment_id = db.Column(db.Integer, db.ForeignKey("comment.id"), nullable=True)
     proposal_id = db.Column(db.Integer, db.ForeignKey("proposal.id"), nullable=False)
@@ -34,6 +39,24 @@ class Comment(db.Model):
             .order_by(Comment.date_created.desc()) \
             .all()
 
+    def report(self, reported: bool):
+        self.reported = reported
+        db.session.add(self)
+
+    def hide(self, hidden: bool):
+        self.hidden = hidden
+        db.session.add(self)
+
+
+# are all of the replies hidden?
+def all_hidden(replies):
+    return reduce(lambda ah, r: ah and r.hidden, replies, True)
+
+
+# remove replies that are hidden and have all hidden children or no children
+def filter_dead(replies):
+    return [x for x in replies if not (x.hidden and all_hidden(x.replies))]
+
 
 class CommentSchema(ma.Schema):
     class Meta:
@@ -46,15 +69,23 @@ class CommentSchema(ma.Schema):
             "content",
             "parent_comment_id",
             "date_created",
-            "replies"
+            "replies",
+            "reported",
+            "hidden",
         )
 
-    date_created = ma.Method("get_date_created")
+    content = ma.Method("get_content")
+    date_created = UnixDate(attribute='date_created')
     author = ma.Nested("UserSchema")
-    replies = ma.Nested("CommentSchema", many=True)
+    # custome handling of replies, was: replies = ma.Nested("CommentSchema", many=True)
+    replies = ma.Method("get_replies")
 
-    def get_date_created(self, obj):
-        return dt_to_unix(obj.date_created)
+    def get_content(self, obj):
+        return HIDDEN_CONTENT if obj.hidden else obj.content
+
+    # filter out "dead" comments
+    def get_replies(self, obj):
+        return comments_schema.dump(filter_dead(obj.replies))
 
 
 comment_schema = CommentSchema()
@@ -69,6 +100,8 @@ class UserCommentSchema(ma.Schema):
             "proposal",
             "content",
             "date_created",
+            "reported",
+            "hidden",
         )
 
     proposal = ma.Nested(
@@ -78,14 +111,56 @@ class UserCommentSchema(ma.Schema):
             "milestones",
             "content",
             "invites",
-            "updates"
+            "updates",
         ]
     )
-    date_created = ma.Method("get_date_created")
 
-    def get_date_created(self, obj):
-        return dt_to_unix(obj.date_created) * 1000
+    content = ma.Method("get_content")
+    date_created = UnixDate(attribute='date_created')
+
+    def get_content(self, obj):
+        return HIDDEN_CONTENT if obj.hidden else obj.content
 
 
 user_comment_schema = UserCommentSchema()
 user_comments_schema = UserCommentSchema(many=True)
+
+
+class AdminCommentSchema(ma.Schema):
+    class Meta:
+        model = Comment
+        fields = (
+            "id",
+            "user_id",
+            "author",
+            "proposal",
+            "proposal_id",
+            "content",
+            "date_created",
+            "reported",
+            "hidden",
+        )
+
+    proposal = ma.Nested(
+        "ProposalSchema",
+        only=[
+            "proposal_id",
+            "title",
+            "brief"
+        ]
+    )
+    author = ma.Nested(
+        "SelfUserSchema",
+        only=[
+            "userid",
+            "email_address",
+            "display_name",
+            "title",
+            "avatar",
+        ]
+    )
+    date_created = UnixDate(attribute='date_created')
+
+
+admin_comment_schema = AdminCommentSchema()
+admin_comments_schema = AdminCommentSchema(many=True)
diff --git a/backend/grant/proposal/views.py b/backend/grant/proposal/views.py
index 356b9b36..7a4a33cb 100644
--- a/backend/grant/proposal/views.py
+++ b/backend/grant/proposal/views.py
@@ -70,7 +70,7 @@ def get_proposal_comments(proposal_id, page, filters, search, sort):
     filters_workaround = request.args.getlist('filters[]')
     page = pagination.comment(
         schema=comments_schema,
-        query=Comment.query.filter_by(proposal_id=proposal_id, parent_comment_id=None),
+        query=Comment.query.filter_by(proposal_id=proposal_id, parent_comment_id=None, hidden=False),
         page=page,
         filters=filters_workaround,
         search=search,
@@ -79,6 +79,24 @@ def get_proposal_comments(proposal_id, page, filters, search, sort):
     return page
 
 
+@blueprint.route("/<proposal_id>/comments/<comment_id>/report", methods=["PUT"])
+@requires_email_verified_auth
+@endpoint.api()
+def report_proposal_comment(proposal_id, comment_id):
+    # Make sure proposal exists
+    proposal = Proposal.query.filter_by(id=proposal_id).first()
+    if not proposal:
+        return {"message": "No proposal matching id"}, 404
+
+    comment = Comment.query.filter_by(id=comment_id).first()
+    if not comment:
+        return {"message": "Comment doesn’t exist"}, 404
+
+    comment.report(True)
+    db.session.commit()
+    return None, 200
+
+
 @blueprint.route("/<proposal_id>/comments", methods=["POST"])
 @requires_email_verified_auth
 @endpoint.api(
diff --git a/backend/grant/utils/pagination.py b/backend/grant/utils/pagination.py
index a2ee2eab..238e505d 100644
--- a/backend/grant/utils/pagination.py
+++ b/backend/grant/utils/pagination.py
@@ -3,6 +3,7 @@ from sqlalchemy import or_, and_
 
 from grant.comment.models import Comment, comments_schema
 from grant.proposal.models import db, ma, Proposal, ProposalContribution, ProposalArbiter, proposal_contributions_schema
+from grant.comment.models import Comment, comments_schema
 from grant.user.models import User, users_schema
 from grant.milestone.models import Milestone
 from .enums import ProposalStatus, ProposalStage, Category, ContributionStatus, ProposalArbiterStatus, MilestoneStage
@@ -232,7 +233,7 @@ class UserPagination(Pagination):
 
 class CommentPagination(Pagination):
     def __init__(self):
-        self.FILTERS = []
+        self.FILTERS = ['REPORTED', 'HIDDEN']
         self.PAGE_SIZE = 10
         self.SORT_MAP = {
             'CREATED:DESC': Comment.date_created.desc(),
@@ -253,18 +254,22 @@ class CommentPagination(Pagination):
 
         # FILTER
         if filters:
-            pass
+            self.validate_filters(filters)
+            if 'REPORTED' in filters:
+                query = query.filter(Comment.reported == True)
+            if 'HIDDEN' in filters:
+                query = query.filter(Comment.hidden == True)
 
         # SORT (see self.SORT_MAP)
         if sort:
             self.validate_sort(sort)
             query = query.order_by(self.SORT_MAP[sort])
 
-        # SEARCH can match txids or amounts
+        # SEARCH
         if search:
-            query = query.filter(or_(
-                Comment.content.ilike(f'%{search}%'),
-            ))
+            query = query.filter(
+                Comment.content.ilike(f'%{search}%')
+            )
 
         res = query.paginate(page, self.PAGE_SIZE, False)
         return {
diff --git a/backend/migrations/versions/02acd43b4357_.py b/backend/migrations/versions/02acd43b4357_.py
new file mode 100644
index 00000000..e80162fa
--- /dev/null
+++ b/backend/migrations/versions/02acd43b4357_.py
@@ -0,0 +1,30 @@
+"""basic comment table moderation fields - hidden, reported
+
+Revision ID: 02acd43b4357
+Revises: 27975c4a04a4
+Create Date: 2019-02-17 17:17:17.677275
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '02acd43b4357'
+down_revision = '27975c4a04a4'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('comment', sa.Column('hidden', sa.Boolean(), server_default=sa.text('FALSE'), nullable=False))
+    op.add_column('comment', sa.Column('reported', sa.Boolean(), server_default=sa.text('FALSE'), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('comment', 'reported')
+    op.drop_column('comment', 'hidden')
+    # ### end Alembic commands ###
diff --git a/frontend/client/api/api.ts b/frontend/client/api/api.ts
index acfbe1ca..90fad28d 100644
--- a/frontend/client/api/api.ts
+++ b/frontend/client/api/api.ts
@@ -45,6 +45,10 @@ export function getProposalComments(proposalId: number | string, params: PagePar
   return axios.get(`/api/v1/proposals/${proposalId}/comments`, { params });
 }
 
+export function reportProposalComment(proposalId: number, commentId: number) {
+  return axios.put(`/api/v1/proposals/${proposalId}/comments/${commentId}/report`);
+}
+
 export function getProposalUpdates(proposalId: number | string) {
   return axios.get(`/api/v1/proposals/${proposalId}/updates`);
 }
diff --git a/frontend/client/components/Comment/index.tsx b/frontend/client/components/Comment/index.tsx
index f22eb213..d2d45587 100644
--- a/frontend/client/components/Comment/index.tsx
+++ b/frontend/client/components/Comment/index.tsx
@@ -1,12 +1,12 @@
 import React from 'react';
 import { connect } from 'react-redux';
 import moment from 'moment';
-import { Button } from 'antd';
+import { Button, message } from 'antd';
 import { Link } from 'react-router-dom';
 import Markdown from 'components/Markdown';
 import UserAvatar from 'components/UserAvatar';
 import MarkdownEditor, { MARKDOWN_TYPE } from 'components/MarkdownEditor';
-import { postProposalComment } from 'modules/proposals/actions';
+import { postProposalComment, reportProposalComment } from 'modules/proposals/actions';
 import { getIsSignedIn } from 'modules/auth/selectors';
 import { Comment as IComment } from 'types';
 import { AppState } from 'store/reducers';
@@ -24,6 +24,7 @@ interface StateProps {
 
 interface DispatchProps {
   postProposalComment: typeof postProposalComment;
+  reportProposalComment: typeof reportProposalComment;
 }
 
 type Props = OwnProps & StateProps & DispatchProps;
@@ -76,7 +77,12 @@ class Comment extends React.Component<Props> {
             <a className="Comment-controls-button" onClick={this.toggleReply}>
               {isReplying ? 'Cancel' : 'Reply'}
             </a>
-            {/*<a className="Comment-controls-button">Report</a>*/}
+            {!comment.hidden &&
+              !comment.reported && (
+                <a className="Comment-controls-button" onClick={this.report}>
+                  Report
+                </a>
+              )}
           </div>
         )}
 
@@ -120,6 +126,16 @@ class Comment extends React.Component<Props> {
     const { reply } = this.state;
     this.props.postProposalComment(comment.proposalId, reply, comment.id);
   };
+
+  private report = async () => {
+    const { proposalId, id } = this.props.comment;
+    const res = await this.props.reportProposalComment(proposalId, id);
+    if ((res as any).error) {
+      message.error('Problem reporting comment: ' + (res as any).payload);
+    } else {
+      message.success('Comment reported');
+    }
+  };
 }
 
 const ConnectedComment = connect<StateProps, DispatchProps, OwnProps, AppState>(
@@ -130,6 +146,7 @@ const ConnectedComment = connect<StateProps, DispatchProps, OwnProps, AppState>(
   }),
   {
     postProposalComment,
+    reportProposalComment,
   },
 )(Comment);
 
diff --git a/frontend/client/modules/proposals/actions.ts b/frontend/client/modules/proposals/actions.ts
index 7817bcc3..47cdd719 100644
--- a/frontend/client/modules/proposals/actions.ts
+++ b/frontend/client/modules/proposals/actions.ts
@@ -4,6 +4,7 @@ import {
   getProposal,
   getProposalComments,
   getProposalUpdates,
+  reportProposalComment as apiReportProposalComment,
   getProposalContributions,
   postProposalComment as apiPostProposalComment,
   requestProposalPayout,
@@ -204,3 +205,28 @@ export function postProposalComment(
     }
   };
 }
+
+export function reportProposalComment(
+  proposalId: Proposal['proposalId'],
+  commentId: Comment['id'],
+) {
+  return async (dispatch: Dispatch<any>) => {
+    dispatch({ type: types.REPORT_PROPOSAL_COMMENT_PENDING, payload: { commentId } });
+
+    try {
+      await apiReportProposalComment(proposalId, commentId);
+      return dispatch({
+        type: types.REPORT_PROPOSAL_COMMENT_FULFILLED,
+        payload: {
+          commentId,
+        },
+      });
+    } catch (err) {
+      return dispatch({
+        type: types.REPORT_PROPOSAL_COMMENT_REJECTED,
+        payload: err.message || err.toString(),
+        error: true,
+      });
+    }
+  };
+}
diff --git a/frontend/client/modules/proposals/reducers.ts b/frontend/client/modules/proposals/reducers.ts
index 709522c7..1594994c 100644
--- a/frontend/client/modules/proposals/reducers.ts
+++ b/frontend/client/modules/proposals/reducers.ts
@@ -172,6 +172,42 @@ function addPostedComment(state: ProposalState, payload: PostCommentPayload) {
   };
 }
 
+function updateCommentInStore(
+  state: ProposalState,
+  commentId: Comment['id'],
+  update: Partial<Comment>,
+) {
+  // clone so we can mutate with great abandon!
+  const pages = cloneDeep(state.detailComments.pages);
+  // recursive populate replies for nested comment
+  const f = (id: number, p: Comment) => {
+    if (p.id === id) {
+      Object.entries(update).forEach(([k, v]) => {
+        (p as any)[k] = v;
+      });
+      return;
+    } else {
+      p.replies.forEach(x => f(id, x));
+    }
+  };
+  // pages > page > comments
+  pages.forEach(p =>
+    p.forEach(c => {
+      f(commentId, c);
+    }),
+  );
+
+  return {
+    ...state,
+    isPostCommentPending: false,
+    detailComments: {
+      ...state.detailComments,
+      pages,
+      total: state.detailComments.total + 1,
+    },
+  };
+}
+
 export default (state = INITIAL_STATE, action: any) => {
   const { payload } = action;
   switch (action.type) {
@@ -336,6 +372,9 @@ export default (state = INITIAL_STATE, action: any) => {
         },
       };
 
+    case types.REPORT_PROPOSAL_COMMENT_FULFILLED:
+      return updateCommentInStore(state, payload.commentId, { reported: true });
+
     case types.PROPOSAL_UPDATES_PENDING:
       return {
         ...state,
diff --git a/frontend/client/modules/proposals/types.ts b/frontend/client/modules/proposals/types.ts
index 0f06fe03..25e31b04 100644
--- a/frontend/client/modules/proposals/types.ts
+++ b/frontend/client/modules/proposals/types.ts
@@ -47,6 +47,11 @@ enum proposalTypes {
   PROPOSAL_PAYOUT_ACCEPT_FULFILLED = 'PROPOSAL_PAYOUT_ACCEPT_FULFILLED',
   PROPOSAL_PAYOUT_ACCEPT_REJECTED = 'PROPOSAL_PAYOUT_ACCEPT_REJECTED',
   PROPOSAL_PAYOUT_ACCEPT_PENDING = 'PROPOSAL_PAYOUT_ACCEPT_PENDING',
+
+  REPORT_PROPOSAL_COMMENT = 'REPORT_PROPOSAL_COMMENT',
+  REPORT_PROPOSAL_COMMENT_PENDING = 'REPORT_PROPOSAL_COMMENT_PENDING',
+  REPORT_PROPOSAL_COMMENT_FULFILLED = 'REPORT_PROPOSAL_COMMENT_FULFILLED',
+  REPORT_PROPOSAL_COMMENT_REJECTED = 'REPORT_PROPOSAL_COMMENT_REJECTED',
 }
 
 export default proposalTypes;
diff --git a/frontend/types/comment.ts b/frontend/types/comment.ts
index c21422f7..bed55429 100644
--- a/frontend/types/comment.ts
+++ b/frontend/types/comment.ts
@@ -7,6 +7,8 @@ export interface Comment {
   dateCreated: number;
   author: User;
   replies: Comment[];
+  reported: boolean;
+  hidden: boolean;
 }
 
 export interface UserComment {