User blog comment:Mira Laime/How to Deal With a Bad Bureaucrat/@comment-168424-20160226175240/@comment-961279-20160306161858

If you cannot hold the discussion on your wiki due to interference from the person being discussed, then you may have to hold it on neutral ground, such as here on Community Central. In that case, the interference may work to your advantage if you can demonstrate that you attempted to resolve the matter in a peaceful and reasonable manner but that person became unreasonable.

I can think of one wiki where they started to go through the process of removing the rights of a couple users and one of them immediately proved by their behavior that the wiki was right to do so. It was handled on-site, but it did get taken care of.