Comment 4 for bug 722509

Actually, this is a very simple fix. You just need to use schema.org coding the HTMl:

http://schema.org/Person
http://schema.org/Article
http://schema.org/BlogPosting

Specifically you want the "interactionCount".
<span itemprop="interactionCount">3 posts</span> - <span itemProp="interactionCount">2 authors</span> - Last post:

I can't find the code for "last post" or whatever it is called.