I don't know that I'm in favor of a total ban but I would like to see the site adopt a welch policy similar to the one used at ar15.com. Any welch by a buyer or seller in any of the Equipment Exchange forums there gets you a permaban in those forums. It's not a site-wide ban, just in the EE.It seems obvious the "seller" is here only for the classifieds. 4 pages on his shady dealing and no response. Bad feedback on previous deal.
Seems the Mods should be swinging a ban hammer. Just my $0.02, but integrity is worth more.