Why do people on eBay bid up items in the first few days? Was looking at a cheap Red dot sight and it's now £3 less than brand new.. with 4 days to go on the listing. Just watch the item and put your max in at the end. Get it cheaper? Boggles the mind.
Dumb eBay auto bid. Used to have to enter each bid individually, so they would go up steadily or not. Then they introduced auto bidding where the system will keep adding another until it runs out. So if two people place their max bid, the system just bids to one increment above the lowest one.