I believe the recent fall in BTC price was caused by Bitmain liquidating BTC they hold before the IPO.
That company is a cancer to crypto: Monopoly in mining, monopoly in hardware, lawsuits in California for theft of the hashrate during setup process etc.
I really hope they leave the crypto business and concentrate on AI, but then again they will figure new way of mining crypto using AI.
Alone that company could control our decentralized crypto world - is not that scary?
Do you have evidence of Bitmain selling BTC for USD? Did you find the transfer of BTC from Bitmain address to exchanges?