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I'm assuming shilling.
Given the bid history, I would assume that is the case.
Maybe a dumb question - but what does that mean?
If you look at the bid history someone (normally a second, third or forth account held by the seller - note in this example it is the 2***7 user) is bidding to increase the price in a very short time frame.
It's done to make people think the watch is special, FOMO. If the seller ends up winning the watch with their second account (ie they are not very good a shilling) then they will cancel the sale and relist the item.
But you can't bid against yourself, right? If you are already the high bidder, increasing your bid just raises the maximum you are willing to pay. It doesn't show up for other bidders until they try to outbid you.
At the same time, if I have multiple accounts and want to be dishonest, isn't simpler to just put an hidden "reserve price" with that, then putting 20 stupid bids and ruining my auction? Just my 2 cents.