This list is greatly appreciated. Here's a few I can contribute that I don't think ebay has booted off yet...
Somaplateado – Gave me the run around about paying, used the banks being closed for the Holidays as an excuse for not having the funds to pay. Gave him the benefit of the doubt and never got paid.
Spiderman60123 – French bidder, won a $150+ statue then tried to send me badly translated, incoherent messages about having someone else pay the invoice. Never paid.
Teresak44 - Australian bidder, said he couldn't afford the item, then begged to mutually back out of the auction. I check his feedback and he bought and paid for more expensive auctions that ended AFTER mine.
cobramustang331 - Non paying bidder, no communication
Erikaghinkle - Non paying bidder, no communication
evieg2 - Non paying bidder, no communication.
zombie_i_am - Non paying bidder, no communication
showboi86 - Gave me the run around about paying, took 2+ weeks to pay for something that was only 7 bucks. When he finally did he asked for postive feedback. I told him I wasn't going to leave him any because it wasnt deserved, he then harassed me with one or two messages a day asking for positive feedback. If only this clown put that much effort into paying for the damn thing.