I would say the forum needs more active members, as currently one can count them on fingers. Also, some advertising could bring more people with new topics and fresh ideas. "Introduce yourself" topic should be the first one in the forum list, because many people introducing in wrong threads.
Personally, I would love to discuss global warming problem for example, but not sure where
If I start a new thread in "Chit Chat", it will slide down to bottom in 1 day. Some important topics (like this one) should be sticky I think, because it will never expire and there always be someone to discuss it. Another thread related to science (I've met few people around here who interested in that). A thread related to music, music instruments and software would be nice too. Also try to google "forum ideas" and I'm sure you'll find some good advices from another forum holders. Finally, I think many will agree that last thing that this forum needs is more "adds", they can be for not registered users, but why torture us? LOL
Anyways, those were just suggestions.
Regards,