We'll find out who the real mother is, I read this in the bible once. Starting from the root of all Bitcoin discussion, is those two things. It is either the tech side, or the other side.
Delete all other forums, get rid of off topic, stop Bitcoin.org from being the central location for Bitcoin talk.
Tech discussion (Development, Mining, Projects, Safety), Theory discussion (Economics, Politics, Bitcoin Promotion), and Newbies. Eliminate a marketplace taking place on the official Bitcoin.org forums, leave that for dedicated people (thus all the problems that come with a marketplace will be taken to where those situations rest).
Just a thought, not fully fleshed out.