Always find anyone that does a full flounce from a forum (or other online "community") always comes back with a different account or their original one. It's the people that just quietly slip away unannounced that truly quit.
Will the NSC Two be told (privately) who they are before the bans?
My view is it's Bozza's forum and he can do what he wants. Benevolent Dictator and all that. If anyone doesn't like it they can set up their own forum or go to Reddit or Discord or what have you.