The forums here are generally good. In some ways they are a bit unintuitive to use, but not terribly so.
The biggest impediment I think is that there isn't an active moderator to police posts, act on user suggestions and generally fix problems. For example, e-mail notifications have recently broken, and no one has come forward to fix them yet. Also, there have been several malicious users that have posted spam messages, and these have yet to be cleaned up. Finally, many users have created legitimate posts that have been flagged for approval by a moderator, but those messages have never been released.
Several of us have talked about this in various threads, but I just thought I'd put it out there in the off chance that Those In Charge might pick it up. It seems that the forums have been set up to run themselves, and this works to an extent, but an active moderator would make things work better, in my opinion.