I think it would be a good idea simply because everything is currently in one basket. We've got a mix of political, humor, and firearms related all thrown into the same forum, and some people are strictly interested in the rifles, others are interested in political activism, etc.
I don't think anyone would get "lost" around here if things were a little more organized. This is just my opinion. Of course, EVERYTHING interests me, so I bounce all over anyway. I find myself checking the 1911 forum quite a bit.
I do have a question though: If more groups were added, would they just fall under the heading of "Marlin" or would they be scattered throughout the BBS? I've been wondering about that.