Facebook is a garbage place to organise anything, that's for sure. But the problem with an AFC forum is precisely because the YF forum over the last 15 years has become de facto the NZ football forum. An AFC forum would be to a large extent a duplication of effort.
Except it would be an AFC thing, not a Nix forum with an AFC thread. Sure some of us here would join to talk about the team etc, but it would be a better/safer home than FB. I dont think duplicating this forum is an issue in anyway.