Sorry but there's absolutely nothing wrong with sniping. If you want to win an auction "honestly", put your full bid on there, if it doesn't win it wouldn't matter since the other party obviously wanted it enough to pay more than you did. Sneaking a bid in at the last minute can be done by humans as well as software so there's nothing special about having a computer automate it.
Simply put, if you want to win an auction, don't make a half-assed bid.
Simply put, if you want to win an auction, don't make a half-assed bid.