I have to say as a bystander this is funny from both ends, this guy is being shady and yet y'all are feeding the hostility. If you feel that strongly about this why don't you just block him from the forums since you have access to everyone's IP address. All he is doing is making people who are normally super helpful and professional look bad and bring y'all down to his level. I get the irritation, obviously he is lying but again don't stoop to his level. He is intentionally arguing the point to make you guys look bad.
PS And as an edit, dude really changing your name on the forum after the fact is not helping your case!