I don't see the need for a new one. I only read a couple of fora on PPRuNe (unless i'm bored!
) and if the students move off somewhere and the IFR gurus went off to BizJets and 'GA' then I doubt i'd read anything either group write. I'd much rather keep it all in one place. You could say the PFA board shows what happens when you isolate a single group of flyers... not much!
We just need a few more people to ignore topics they're not interested in - or if they can't ignore it, not posting moans about it