I didn't know that, but after a quick search it seems that Binance did indeed freeze accounts a few months ago of users who had used CoinJoin transactions. Look at this twitter thread for example: https://twitter.com/bittlecat/status/1207894540322926593. His account and coins were only unfrozen after he "promised" to stop trying to protect his privacy.

Seriously, this is insane. User takes basic steps to afford himself the smallest bit of privacy after already completing full KYC at an exchange, and the exchange literally confiscates his money until he promises to let them stick their noses in to everything he does, every transaction he makes, everywhere he sends his own money.

Why do people use Binance again? Is this level of surveillance worth it to trade shitcoins?