Comment by derefr

> In first incident I chose to ignore a certain user being targeted by others for posting repeated messages. The person left a very angry message and left.

> Comes the second incident, I thought I learnt my lesson. Once a user is targeted, I tried to stop others from targeting the person. But this time the people who targeted the person wrote angry messages and left.

Makes me think that moderators should have the arbitrational power to take two people or groups, and (explicitly, with notice to both people/groups) make each person/group's public posts invisible to the other person/group. Like a cross between the old Usenet ignore lists, and restraining orders, but externally-imposed without either party actively seeking it out.