Since SkyFire was never intended to replace TrinityCore and TrinityCore has more contributors and more content (according to patch) I think more people will go with that. And no I don't know anyone using SkyFire.
Well, no, but it was intended to bring Cataclysm in the game and pretty much gave that to Cataclysm people. Seeing that TrinityCore has a 4.3.4 branch, SkyFire is pointless... unless they have less bugs considering they started with Cataclysm, only reason I could think of. And no, the only core(s) I hear about now is TrinityCore, MaNGOS and ArcEmu.
Yeah, I just removed the section entirely. Might make a cataclysm section or whatever.. Tommy will figure it out
Nothing to figure out. Pretty much established that SkyFire is pointless.