Many crypto scams use annoying KYC steps to trick users and steal their money. Sorry OP, you can also refer those topics.

ChangeNOW is a SCAM exchange that has been illegally holding my 1.38M Zilliqa
ChangeNOW.io Evercode Lab - Scam. Defamation. Abuses. Threats - Russian Business
ICO. ChangeNOW.io has failed to list or exchange their own NOW tokens.
Changenow.io selective scamming
[SCAM EXCHANGE] CHANGENOW.IO trying to steal my 3 BTC
ChangeNow.io (Evercode Lab) - Scam. Illegally holding of 100 BCH (11 bitcoins).
Scam about 1.6 BTC.