I, for one, don't like change, but that's because I'm at age where I can play the grumpy old man card, when it suits me. Actually, not true, I'm just a grumpy man, period.
I understand the desire for change but I feel that will only cloud the issues more. Sitar I am responding purely from a selfish point of view. I am looking for a 27.5 + frame and am struggling to find what I want, everything that gets close is advertised as 29er. When you reach out to manufacturers to see if that 29er frame will take 27.5+ tyres you get the standard "it might be we are not sure" reply. Whilst I understand that many of the newer frames will accommodation wider tyres, knowing which ones will go to 2.8's or even 3.0's is often hard enough, hence the reason I feel it will only be even more clouded when the forums are merged.
Again, I am answering from a point of view of looking for something very specific so please take this response as you see fit. I appreciate this site and will continue to visit regardless of it's layout.
Emu.