No. It's a tactic that answers a 'problem' specific to ebay; auctions aren't extended according to whether or not there are more bids but stop according to a time limit. I don't use sniping software as the removal from the bidding process doesn't appeal to me but if I really want something, rather than enter my highest from the outset, I place it 4 or 5 seconds before the auction is due to end. That way I know straight away if my bid was successful or not and also know that it won or lost on its own merits. Or something like that.