Why are exchanges freezing accounts?
exchanges have owners (who are mostly anonymous people but who ironically keep asking customers to do KYC) and unfortunately the exchange owner can block your account whenever he wants
What can I do to make them not freeze my account?
Just make sure you don't break the TOS
What are the best exchanges to use?
Binance, but you said you don't want exchanges that have KYC, so get ready to see your money frozen on those shady exchanges