anchor.diff:          </div>
           <div class="has-clear-clear"></div>
   
  +        <% been_edited = post.last_activity_by_id != nil %>
  +        <% if (been_edited) then last_edited_by_self = post.user_id === post.last_activity_by_id end %>
  +
           <div class="has-been-edited">
  -          <% if (post.last_activity_by_id == nil) then %>
  +          <% if not been_edited then %>
               <span><p>Never edited.</p></span>
  +          <% elsif last_edited_by_self then %>
  +            <span><p>Last edited <%= time_ago_in_words(post.last_activity) %> ago.</p></span>
             <% else %>
  -            <span><p>Last edited <%= time_ago_in_words(post.last_activity) %> ago.</p></span>
  +            <span><p>
  +              Last edited <%= time_ago_in_words(post.last_activity) %> ago by
  +              <%= link_to post.last_activity_by.username, user_path(post.last_activity_by_id) %>.
  +            </p></span>
             <% end %>
           </div>
   
  
positive.code: 
        <div class="post--body">
          <%= raw(sanitize(post.body, scrubber: scrubber)) %>
    
          <div class="post--meta has-margin-bottom-4">
            <%= render 'users/post_usercard', post: post %>
            <% if has_tags %>
  
negative.code:               <%= render 'comments/comment', comment: comment %>
              <% end %>
            </div>
  
            <div class="post--comments-links has-margin-top-1">
              <% if comments.count > 5 %>
                <a href="#" class="js-more-comments" data-post-id="<%= post.id %>">
  