The forum numbers will grow dramatically when Diablo 3 is actually released. There is not much market for D2 stuff now, and most of the other games they have listed don't have as large market potential. Look for the numbers to double by June, then skyrocket from there. My guess is 200,000 by the end of the year.
Not if they don't reduce the number of forums it won't.
Also, has anyone even got any mBTC listed in their profiles? I can't see any.
We removed a bunch of forums and made the main-page a lot smaller for now, we are still working on some stuff improve the main-page.
You can see a members mBTC in their profile or right under the avatar in any thread.