I, as a lurker, think the forum seems to operate pretty well compared to many others. Part of that is the moderation. It’s hard to build up online communities and the general evidence is that the ones that work well and last have a pretty strong ethos on what the community is about and what sort of place it should be. And enforce it[0]. This is especially true of things like forums which have a very low barrier to entry.
So, you might not like some of the rules but I think the forums wouldn’t be nearly as useful as they are without them.
0: A good example of this is Flickr: if you go and trawl through the help discussion on flickr then it’s full of examples where moderators have stepped in to close stuff down that they see an inappropriate. Flickr and especially Heather Champ – their community manager – get a lot of respect for their skills at building a community.