Good point. Good idea. Might even have people guiding the process with many folks in decent communities doing it over time. I imagine almost all decent ones, regardless of group norms, will be against a specific subset of behavior such as trolling, obvious words denoting hate, and specific patterns of heated, pointless argument. So, even a lowest, common denominator among many forums downvotes and flags might be useful. Then, forum-specific methods take over from there.