It isn't my place to tell the owners of Bikeforums.net how to run their business but I will offer that permitting argumentative, lecturing and condescending members and even culling moderators from those who are adept at it is the main reason why I have not become a paid member.
I try not to condemn people or groups but will condemn behavior and ideology. I don't hate any man, nor wish anyone ill - on the contrary, I hope that those who exhibit such behavior recognize the fact and change. The good news is that behavior can change. I'm proof, though I still have a long way to go.
Its to the point where having a reasonable conversation with anyone is an extreme rarity.
-Tim-