Proposal: Amateur Radio
I can't think of an reason why discussion of brands/models would be a problem, but in my opinion we should not allow buying/selling on the forum. That's a whole other can of worms that I think it best to just steer clear of, and if you guys agree, we should make it well-known very early that discussion of actual buying/selling via the forum should not occur.
Though a grey area might be someone coming here and asking something like "I'm looking at this radio, is it good, what should I know about it, etc." I would consider this sort of question at least reasonable, since if here is not the place where we can tell them all about it, then where?