I have not been following this whole thread, so maybe this has been said already, but....
I find the entire nature of this discussion really outrageous and fowl. When you type letters and press "post" do you think about the human being who is reading them at the other end? It is poshut so cruel and nasty, and it hurts just to read. Forget about hakoras hatov, just don't attack the guy. What does he owe you? Did he take something from you?
Please, people, show some basic humanity.