I really didn't want to read the whole thread, but I couldn't stop myself. When I clicked on several of their profiles, I realized that my dog tags have been around longer than most of Sherdog's posters. So I'm not really bothered by their comments based on their vast experience in life, let alone martial arts.
And yes, once I got past the poor grammar, logic, and general vulgarity, I wound up examining how I train...but I will happily continue with Aikido.
If they REALLY want to test how tough they are, they can come to work for my employer and we'll be happy to send them to Iraq or wherever we may go next...sigh...it's time for a lot of us to come back home and play with our own kids anyway.