Hi, for those that doesn't know you can block ebay users here:
http://offer.ebay.com/ws/eBayISAPI.dll?BidderBlockLogin
This is my list:
james_musacchio, truetina8401, typingmoon
They "change their mind" after they won the auction, by the time those cases were close the price of the usb miner was reduced and I ended up loosing money. I only going to use "buy it now" from now on (to require them to pay instantly)