I am glad you found the blocked buyers list. That's the best thing to do with someone like this, who is constantly bidding or buying without paying.
I hope you always follow through with an unpaid item claim with someone who doesn't pay. If you do, the person will get a strike. If they get a couple of strikes within 6 months to a year, they will find themselves automatically blocked from buying with a lot of sellers.
That's something else you should do if you haven't yet-block buyers who have a couple of strikes within the last 12 months.
The other thing too is if you find that the same person comes back bidding on your items under another user name, I believe that is against ebay policy and you could contact ebay direct about it.
