Honestly, I think this is getting blown out of proportion.. Yeah, $400 is a lot of money to you and I, but not worth the guy to destroy his reputation over. It is soo easy with the internet to trash someone if they screw you over, especially if they are of his fame
I don't think the guy is dumb enough to bounce or cancel a check to steal a $400 machine. If its a cashiers check, I'd deposit it and let the machine go. Yes, the communication was bad and not following the paypal rule is wrong.. So the guy is cocky, arrogant, stupid, whatever... I don't think I'd let that get in the way...
Maybe its just that I haven't been screwed over yet... YMMV