I agree with your response Leon, for all of the reasons stated.
I don't know who the person was, but he/she did have the freedom to speak their mind regarding whatever thread it was on.... that is the beauty of an open forum. Instead, they chose to email you to complain about the poster/thread.
I've heard of another forum that makes threads go "poof"
and I can say that I would never want to be a part of a forum that controls free speech like some North Korean dictatorship. Long live the first amendment in the Bill of Rights!!!
Sincerely, Clayton