Having read most of the threads your original post generated, I don't think you behaved poorly.
I'm personally at a loss as to explain why so many felt the need to attack you as they did.
Unless they felt it their duty to come to Jim's aid.
For me, I don't have a "dog in this fight", but having had my own problems with a few who post on this board in the past, just go about your business and treat others with respect. You seem like a decent and sincere person, enjoy collecting, don't fret over what others might have said, and if you go to Las Vegas, enjoy your time there.
Happy chipping!