Skip, why would a seller not want a "snipe bid" on an item? To me the only one that it hurts is the guy who bids $5.00 for a $50 item and thinks for 5 or 6 days he is gong to get for nothing, then somebody comes along and snipes him, had he really bid his highest amount in the first place he would have gotten the item at a fair price.
Beside a snipe bid can be remomed before it actually is bid, incase the bidder changes his mind. I snipe all the time (some times I win , sometimes I loose) but i have nerver heard a seller complain, and if I get sniped, it is my own fault for not bidding higher.