diff --git a/src/components/modal/mute/modal.jsx b/src/components/modal/mute/modal.jsx
index 2a4f34397..00a25ee74 100644
--- a/src/components/modal/mute/modal.jsx
+++ b/src/components/modal/mute/modal.jsx
@@ -20,6 +20,10 @@ class MuteModal extends React.Component {
             'handleNext',
             'handlePrevious'
         ]);
+        this.numSteps = 2;
+        if (this.props.showWarning) {
+            this.numSteps++;
+        }
         this.state = {
             step: 0
         };
@@ -82,6 +86,23 @@ class MuteModal extends React.Component {
                                 />
                             </p>
                         </MuteStep>
+                        {this.props.showWarning ? (
+                            <MuteStep
+                                bottomImg="/svgs/commenting/warning.svg"
+                                bottomImgClass="bottom-img"
+                                header={this.props.intl.formatMessage({id: 'comments.muted.warningBlocked'})}
+                            >
+                                <p>
+                                    <FormattedMessage
+                                        id="comments.muted.warningCareful"
+                                        values={{CommunityGuidelinesLink: (
+                                            <a href="/community_guidelines">
+                                                <FormattedMessage id="report.CommunityGuidelinesLinkText" />
+                                            </a>
+                                        )}}
+                                    />
+                                </p>
+                            </MuteStep>) : null}
                     </Progression>
                     <FlexRow className={classNames('nav-divider')} />
                     <FlexRow className={classNames('mute-nav')}>
@@ -97,7 +118,7 @@ class MuteModal extends React.Component {
                                 </div>
                             </Button>
                         ) : null }
-                        {this.state.step >= 1 ? (
+                        {this.state.step >= this.numSteps - 1 ? (
                             <Button
                                 className={classNames('close-button')}
                                 onClick={this.props.onRequestClose}
@@ -131,6 +152,7 @@ MuteModal.propTypes = {
         muteStepContent: PropTypes.string
     }),
     onRequestClose: PropTypes.func,
+    showWarning: PropTypes.bool,
     timeMuted: PropTypes.string
 };
 
diff --git a/src/l10n.json b/src/l10n.json
index 414a1f221..3e6689df7 100644
--- a/src/l10n.json
+++ b/src/l10n.json
@@ -354,6 +354,9 @@
     "comments.muted.moreInfoGuidelines": "If you would like more information, you can read the {CommunityGuidelinesLink}.",
     "comments.muted.moreInfoModal": "For more information, {clickHereLink}.",
     "comments.muted.clickHereLinkText": "click here",
+    "comments.muted.warningBlocked": "If you continue to post comments like this, it will cause you to be blocked from using Scratch",
+    "comments.muted.warningCareful": "We don't want that to happen, so please be careful and make sure you have read and understand the {CommunityGuidelinesLink} before you try to post again!",
+
 
     "social.embedLabel": "Embed",
     "social.copyEmbedLinkText": "Copy embed",
diff --git a/src/views/preview/comment/compose-comment.jsx b/src/views/preview/comment/compose-comment.jsx
index 20fd9100e..eb0688c16 100644
--- a/src/views/preview/comment/compose-comment.jsx
+++ b/src/views/preview/comment/compose-comment.jsx
@@ -48,7 +48,8 @@ class ComposeComment extends React.Component {
             error: null,
             appealId: null,
             muteOpen: false,
-            muteExpiresAtMs: this.props.muteStatus.muteExpiresAt * 1000 // convert to ms
+            muteExpiresAtMs: this.props.muteStatus.muteExpiresAt * 1000, // convert to ms
+            showWarning: this.props.muteStatus.showWarning ? this.props.muteStatus.showWarning : false
         };
     }
     handleInput (event) {
@@ -80,12 +81,14 @@ class ComposeComment extends React.Component {
                 let muteOpen = false;
                 let muteExpiresAtMs = 0;
                 let rejectedStatus = ComposeStatus.REJECTED;
+                let showWarning = false;
                 if (body.status && body.status.mute_status) {
                     muteExpiresAtMs = body.status.mute_status.muteExpiresAt * 1000; // convert to ms
                     rejectedStatus = ComposeStatus.REJECTED_MUTE;
                     if (this.shouldShowMuteModal(body.status.mute_status.offenses)) {
                         muteOpen = true;
                     }
+                    showWarning = body.status.mute_status.showWarning;
                 }
                 // Note: does not reset the message state
                 this.setState({
@@ -93,7 +96,8 @@ class ComposeComment extends React.Component {
                     error: body.rejected,
                     appealId: body.appealId,
                     muteOpen: muteOpen,
-                    muteExpiresAtMs: muteExpiresAtMs
+                    muteExpiresAtMs: muteExpiresAtMs,
+                    showWarning: showWarning
                 });
                 return;
             }
@@ -287,6 +291,7 @@ class ComposeComment extends React.Component {
                         className="mod-mute"
                         muteModalMessages={this.getMuteMessageInfo()}
                         shouldCloseOnOverlayClick={false}
+                        showWarning={this.state.showWarning}
                         timeMuted={formatTime.formatRelativeTime(this.state.muteExpiresAtMs, window._locale)}
                         onRequestClose={this.handleMuteClose}
                     />
@@ -300,7 +305,8 @@ ComposeComment.propTypes = {
     commenteeId: PropTypes.number,
     muteStatus: PropTypes.shape({
         offenses: PropTypes.array,
-        muteExpiresAt: PropTypes.number
+        muteExpiresAt: PropTypes.number,
+        showWarning: PropTypes.bool
     }),
     onAddComment: PropTypes.func,
     onCancel: PropTypes.func,
@@ -317,7 +323,7 @@ ComposeComment.propTypes = {
 const mapStateToProps = state => ({
     muteStatus: state.session.session.permissions.mute_status ?
         state.session.session.permissions.mute_status :
-        {muteExpiresAt: 0, offenses: []},
+        {muteExpiresAt: 0, offenses: [], showWarning: false},
     user: state.session.session.user
 });
 
diff --git a/test/unit/components/compose-comment.test.jsx b/test/unit/components/compose-comment.test.jsx
index c49e9dd75..f0fd8558b 100644
--- a/test/unit/components/compose-comment.test.jsx
+++ b/test/unit/components/compose-comment.test.jsx
@@ -104,7 +104,8 @@ describe('Compose Comment test', () => {
                     permissions: {
                         mute_status: {
                             muteExpiresAt: 5,
-                            offenses: []
+                            offenses: [],
+                            showWarning: true
                         }
                     }
                 }
@@ -114,6 +115,7 @@ describe('Compose Comment test', () => {
         const commentInstance = component.instance();
         // Check conversion to ms from seconds is done at init time.
         expect(commentInstance.state.muteExpiresAtMs).toEqual(5 * 1000);
+        expect(commentInstance.state.showWarning).toBe(true);
         // Compose box should be hidden if muted unless they got muted due to a comment they just posted.
         expect(component.find('FlexRow.compose-comment').exists()).toEqual(false);
         expect(component.find('MuteModal').exists()).toEqual(false);
@@ -191,9 +193,41 @@ describe('Compose Comment test', () => {
         commentInstance.setState({muteOpen: true});
         component.update();
         expect(component.find('MuteModal').exists()).toEqual(true);
+        expect(component.find('MuteModal').props().showWarning).toBe(false);
         global.Date.now = realDateNow;
     });
 
+    test('Mute Modal gets showWarning props from state', () => {
+        const store = mockStore({
+            session: {
+                session: {
+                    user: {},
+                    permissions: {
+                        mute_status: {}
+                    }
+                }
+            }
+        });
+        const component = mountWithIntl(
+            <ComposeComment
+                {...defaultProps()}
+            />
+            , {context: {store}}
+        );
+        // set state on the ComposeComment component, not the wrapper
+        const commentInstance = component.find('ComposeComment').instance();
+        commentInstance.setState({muteOpen: true});
+        component.update();
+        expect(component.find('MuteModal').exists()).toEqual(true);
+        expect(component.find('MuteModal').props().showWarning).toBe(false);
+        commentInstance.setState({
+            muteOpen: true,
+            showWarning: true
+        });
+        component.update();
+        expect(component.find('MuteModal').props().showWarning).toBe(true);
+    });
+
     test('shouldShowMuteModal is false when list is undefined ', () => {
         const commentInstance = getComposeCommentWrapper({}).instance();
         expect(commentInstance.shouldShowMuteModal()).toBe(false);
diff --git a/test/unit/components/mute-modal.test.jsx b/test/unit/components/mute-modal.test.jsx
index d5c1907f6..94550a346 100644
--- a/test/unit/components/mute-modal.test.jsx
+++ b/test/unit/components/mute-modal.test.jsx
@@ -33,6 +33,20 @@ describe('MuteModalTest', () => {
         expect(component.find('button.back-button').exists()).toEqual(false);
     });
 
+    test('Mute Modal shows extra showWarning step', () => {
+        const component = mountWithIntl(
+            <MuteModal
+                showWarning
+                muteModalMessages={defaultMessages}
+            />
+        );
+        component.find('MuteModal').instance()
+            .setState({step: 2});
+        component.update();
+        expect(component.find('MuteStep').prop('bottomImg')).toEqual('/svgs/commenting/warning.svg');
+        expect(component.find('MuteStep').prop('totalSteps')).toEqual(3);
+    });
+
     test('Mute Modal shows back & close button on last step', () => {
         const component = mountWithIntl(
             <MuteModal muteModalMessages={defaultMessages} />