Ebay buuuuuuuurn... on me. :(

[r00ster]

"No longer a registered user" could mean:
1) Ban
2) Suspension, after a month, the ebayer could just send an email to CS and ask for the ID back. Most of the times, they won't. They will just register another account with a different email address and credit card.
3) Ebayer asked to close his account.

But rooster, you are lucky that you got your money back. The seller could simply ignore you. Doesn't matter if there are negative feedbacks or not, he/she could just set up another account anytime.

Yeah, I definitely know that I was lucky... I think he knew that I wouldn't stop harrassing him in every way possible until I got my money back. I also think I lucked out with him sending the refund right before he got canned/suspended. If he had been suspended first, then he wouldn't have been as likely to send the refund.