I think the softboot discussions should be allowed to stay in the main carving community forum so they get as much exposure as possible. If I ask a soft boot related question, I want as many members' feedback as possible and don't think I'll get that in a softboot only forum. Having said that, if it's the only alternative to having softboot topics relegated to the off-topic forum, I'm all for it.
I do think there should be a BX/freeride/soft boot equipment review forum, definitely.