My comment about nobody going there was based on a number of forums which I have seen pop up and after months nearly the only posts were from the bloke who started it, trying to get some discussion going.
I could start a pilot forum tomorrow but who would go there? And being a mod is a tricky job, with some of the abusive characters around.
On the UK GA scene you have flyer and pprune, and there is the little ukga one whose members are mostly from Cardiff and Sherburn
Then there is pplir.org which is very good but also small. I think that's about it, for mainstream GA. There is the AOPA forum (almost nobody on it), the LAA forum (slightly more busy) and doubtless more specialised ones for e.g. gliding which is a big enough scene.
The mods here (private flying) are IMHO very good. I once got banned for posting some naughty URL as a joke but that was done by the sysadmin (some nameless person somewhere behind the scenes). The mods elsewhere on pprune are pretty aggressive though.