It looks like blog posts aren't showing up on the community forum. There also isn't any feedback option on http://blog.stardog.com. I don't know if that's a problem with my browser or if you might have turned that off but thought that it might be related. There was something odd a few weeks ago where old blog posts were slowly reposted to the blog section resulting in them being listed twice and sometimes three times. I went through and cleaned them up so they were only listed once but I thought I'd mention it in case you were wondering why you weren't getting any feedback on the blog posts.
We were trying to use Discourse here as a blog comment forum, but it was really buggy as hell so we turned it off. Still looking for something else that works better than Disqus.