Nothing like Necro-posting a 6 month old thread that's dead in the dust.
Honestly I don't know, I think it's because the workshop was introduced and with it came a lot of kids who flooded the gamemode. A lot of the more mature players just kinda gave up on the gamemode, and it's gradually died out ever since. Kinda sad, really. I think the possibility of a server coming up with old-style concepts is still possible, but any of the old-old fags required to make that happen would have to get off their fat asses to do it. Everyone who visits this forum is basically just a saltier version of their younger self, who now knows all the drama and shit behind servers so no one wants to run it.
Ironically I find myself visiting the Catalyst Gaming forums a lot more often now.