He admitted his intention to troll. He stated the he didn't care if he got banned, he'd be back with a different IP and email.
He is a troll and this was not the first account he has used to troll this site. To his credit, he waited quite a while this time before going into his racist tirades. But, then, this was his first bit of trolling since the site moved.
As far as the way John runs the site: I can attest to what he says. I've never seen him take down criticism of his running of the site and he has personally answered every report that I have made--even when a response was not necessary.
I don't always agree with John's choices, but he is the most reasonable administrator at any of the sites on which I have posted.
John, thanks.
This is going to sound crazy, but how about requiring a credit card to join. You could put a small sum on the card or just hold the sum for a week, then release it. If someone is banned, don't accept that credit card number again. Folks can create unlimited email accounts and proxy to thousands of IPs. The number of credit cards they have access to is quite limited.