anchor.diff:      <div class="col s12">
         <div class="hoverable card-panel">
           <h5 class="grey-text">Posts on the forums per month</h5>
  -        <%= area_chart current_user.thredded_posts.group_by_month(:created_at).map { |date, count| [date.split(' ').first, count] }, download: true %>
  +        <%= area_chart [
  +            { name: 'New threads', data: current_user.thredded_topics.group_by_month(:created_at).map { |date, count| [date.split(' ').first, count] } },
  +            { name: 'Responses',   data: current_user.thredded_posts.group_by_month(:created_at).map { |date, count| [date.split(' ').first, count] } }
  +          ], download: true
  +        %>
  +      </div>
  +    </div>
  +  </div>
  +<% end %>
  +
  +<% if current_user.thredded_private_posts.any? %>
  +  <div class="row">
  +    <div class="col s12">
  +      <div class="hoverable card-panel">
  +        <h5 class="grey-text">Private messages per month</h5>
  +        <% private_postable_ids = current_user.thredded_private_topics.pluck(:id)%>
  +        <%= area_chart [
  +            { name: "Sent",     data: current_user.thredded_private_posts.group_by_month(:created_at).map { |date, count| [date.split(' ').first, count] } },
  +            { name: "Received", data: Thredded::PrivatePost.where.not(user_id: current_user.id).where(postable_id: private_postable_ids).group_by_month(:created_at).map { |date, count| [date.split(' ').first, count] } },
  +          ],
  +          download: true
  +        %>
         </div>
       </div>
     </div>
  
positive.code:   full_width_breakdowns = current_user.content.keys.length > 6
  
    # todo page superlatives (most-edited page, oldest page, etc)
  %>
  
  <h4>
  
negative.code:   <div class="col s12 <%= 'm6' unless full_width_breakdowns %>">
      <div class="hoverable card-panel">
        <h5 class="grey-text">Type breakdown</h5>
        <%= pie_chart current_user.content.map { |n, l| [n.pluralize(l.count), l = l.count] }, download: true, legend: "left" %>
        <span class="grey-text">You can click a page type in the key to toggle it on/off in the pie chart.</span>
      </div>
    </div>
  