Basically this user, who has never been a moderator, gets changed to a moderator every few days. I have made a search, I thought this was a bug and all I had to do was make him a moderator then not make him a moderator, I did this with a usergroup aswell. None of these worked.
The only way, is to go into phpMyAdmin and change his id from 2 to 0. This works but he is reverted back to a moderator with a few days.
Sounds crazy, but true.