Q1) Sure, why not. Plenty of power tripping people out there wishing for a turn at the banhammer.
Q2) No. The communities are already failing just because the exodus of power users is causing a lack of self-moderation via up/down votes. Add to that random tyrants who haven't built the community, and there is no way for them to survive.
Q2) No. The communities are already failing just because the exodus of power users is causing a lack of self-moderation via up/down votes. Add to that random tyrants who haven't built the community, and there is no way for them to survive.