I think maybe we need a longer list of social norms/guidelines.

Wikipedia has the strongest, most resilient culture of any major web platform. It gets stronger as everyone else decays. I think part of the reason is that they have a long wiki list of guidelines, so they can say, "You're using weasel words", or whatever specific violation people are using.

The pyramid of debate is fine and dandy, but it's not enough to cover all situations.