because he's eddie impatient and can't wait for the auction to end to smoke out the high bidder. Someone like this is the ultimate idiot in their everyday life, have no morals and nothing better to do than to place bid, they have no intention following through on. They do it for a variety or reasons, but mostly it is just a mental imbalance.
http://www.youtube.com/watch?v=6e1hZ...eature=related