There is no reason to remove his rights that i can see if this is related to your previous post please do not bring other wikis issues over here. you can contat the user on either community central or the wiki where the issue originated.
Hi Chuck, I’m here on behalf of the Madagascar Wiki. He has been harassing a user named Danielle and after that he decided to harass me. He has been acting (more like fooling) like a administrator and by looking at his message wall I see you have gave him a warning for the same thing “impersonation of administrator” for these recent events I and the Madagascar contributors would appreciate if you could remove his rollback rights. If further evidence is needed you can look up in the recent activity on Madagascar Wiki.