No, the new topic thing died because of a totally unrelated UBB bug (number #145 I encountered so far...). Sometimes it works, sometimes it doesn't.
I first noticed the problem with the ranks when I read one of Kalkrath's posts. He'd just made post 150, so he should have automatically been promoted to Captain. He wasn't though. And the change of rank only took effect when I used a feature called 'update threads', which is used to refresh older posts after you change things like colors. But even in his new posts he wasn't promoted.
Obviously, I don't feel like making that my half daily routine. And that's not likely to change just yet. I can't put an estimate on when they'll be back, because I don't know what the hell went wrong in the first place.