::::::He indicated to me that he would continue to follow our rules as he always had before, which means "not at all".  He did not accept that he had broken the rules, and announced his intention to continue behaving as always.  That was absolutely not enough. 

 ::::::Let me clarify something.  People are not required to support all the rules in detail, of course.  Polite dissent from the rules is welcome.  But in this case, we have an illiterate contributor with a long history of rules breaking telling me point blank that he doesn't think he's done anything wrong, and has no intention of changing.  I see no way to defend that sort of behavior.