The main forum list shows the topic most recently responded to.  Go to the forum, no such topic is there.  

At least two forums showing that currently.

Glenn is tweaking things.  You may find a bunch of stuff like this over the next week but don't worry, things will be better than normal when he's done.

I'm getting scared,  make it go away!!  

I'm just having a hard time getting into the forums at all.