OK, because I have participated in this thread as a regular member, I am not supposed to step in as a moderator. I won't. But I will now make a warning to people about what I see happening here. When I mentioned my two possibilities above, I was actually serious. I obviously don't think he is an imbecile. My only conclusion, then, is that he is deliberately ignoring facts in order to stir things up. Deliberately posting in this way is the classic definition of a troll. Trolling is not allowed in this forum, and if it were more obvious that he is doing this, he would be moderated for it.
But although he keeps repeating the same stuff again and again and again and again, he is doing it in a civil manner that does not in itself violate the ToS. What he is doing, though, is driving everyone else mad to the point that they violate the ToS in their frustrated responses to him. My post above was on that edge, and several others have been there, too. So please don't let him do that to you. I don't think civil responses will do any good, and uncivil responses put you in violation of the ToS. Silence is probably the best course.