Some guy decided to really take wordpress to the next level by moding it to work as a forum.
This just shows how powerful Wordpress really is and what it can do.

I myself was having some thoughts of changing wordpress to a proper CMS with gallery, etc… as i’ve heard people have done it.
It also seems that about.com uses wordpress for blog on certain portal, I wonder how they customise it, hmmm….

Related links
Use Wordpress As A Forum
Your Wordpress Blog Can be a Forum?
Use WordPress Like A Forum