there is nothing a priori that prevents an admin from watching a contentious article that is already under enforcement and stepping in when needed i probably did this a few times myself you can have situations where the participants don't realize how toxic behavior is to others who might want to contribute or indeed they might enjoy the toxic environment that said if there is a concern that an admin is being too heavy handed it seems like the place to bring it up first is wp ae so it can be reviewed by other admins who have experience in enforcement matters thatcher