Personally i think the person who did this, as it seems to be only one buy order, purely did it to get some attention to the coin. He bought the whole orderbook at once. Its most likely be bought his own coins as there wherent much sell orders at those levels.. so im fairly sure not many people have made a profit with the last rally, at least not much btc wise
Unless people already placed their sell orders in anticipation of this happening with their inside information and what have you, which wouldn't be the first time due to how the all the devs suck up to this guy
I doubt it very much. The price was around 2000sats for a long time, then pumped to 4000 sats. Even suckers have part of a brain and nobody is going to buy at levels 1000% higher then it was a minute before...the pump only lasted for a minute or two...and it was clearly one buy order, so only one person bought is most likely...nobody got fucked so the only reason to do this if you want some huge attention and buy up your own coins... or indeed it was a mistake or bug
If he wanted to dump to others at those levels he would have added some buy walls himself..