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dstudebaTheft by deception of an auction that ends cleanly on eBay?  Wow, words escape me.
Prevents a seller getting cheated?  This is just more victim mentality that is pervasive in this country.  Isn't it the seller's job to learn the value or publicize the auction?
How would I feel?  I recently sold a card on the BST in 4 minutes.  Four minutes later I had another offer on it.  That night I got an disappointed email from a friend who needed the card and wished I had let him know I was getting rid of it.  He also wanted to offer the buyer a good deal more for it.  I felt angry at myself for not knowing the value of my item, leaving money on the table, and overlooking a friend.  I was a victim of my own stupidity, that is how I feel.