how the hell can he just make a position?

If we were talking about someone else, I would say that we should ask him, and we may or may not get a decent explanation.
But, from experience, I think that that would only result in an angry, unhelpful, and illogical response from him, so we shouldn't bother.
Personally, my opinion is that he has given himself a bogus title because he has problems with self-esteem.