Worse, and apparently also often, these initiatives are even worse: They introduce a mechanism legitimizing instant bans following a complaint against a user, with no detailed statement of the claims against them, no ability to respond to the accusations, no due process in handling the complaint, and no transparency vis-a-vis other users. This already poisons the community atmosphere - and of course, such mechanisms never fail to be misused, adding to the acrimony.
s/virtue signaling/conspicuous expression of moral values/