Yesterday I get the answer about the new 300 Million USDT that were recently issued.
Shorting was ATH yesterday, and the price of BTC was about to drop to new low level. If you can see, if the price dropped as expected it will cost Bitfinex a lot of money (USDT), especially with the huge amounts not only of shorting, however, with leverage!
If you are in their foot, then you have unlimited amounts of USDT, so instead of just losing it for those short positions, Bitfinex used it for buying huge amounts of BTC and of course liquidating a huge amounts of short positions.
What we are not aware of is BOTs. For BOTs, they are buying and selling automatically according to the average price in the whole market, including Bitfinex leading position, accordingly and the huge bought amount are calculated and raised the price, therefore, BOTs started buying, leveraged shorts liquefied and closed, as well as the FOMO effect start playing.
Therefore, instead of losing their USDT, Bitfinex liquidated the shorts, and win the bought BTC which will be sold to some Whale under the pressure of the huge spick in the price!
I hope you are enjoying the show!