Board Thread:Support Requests - Getting Technical/@comment-27837351-20170813141911/@comment-24055022-20170813142924

You have to contact Staff to do so at Special:Contact/general. But they won't remove the rights for any reason. You need to have a community consensus with the users of that wiki and vote to have his rights removed. Check User blog:Mira Laime/How to Deal With a Bad Bureaucrat.