From the
https://www.kucoin.com/#/user/setting/kyc"Notice: The KYC is not compulsory, which means if client chooses not to complete his/her KYC, the client could always trade without any restrictions. However there will be a limit of 2 BTC on withdrawal amount in 24 hours.The limitation on the withdrawal for KYC unverified account will be implemented on the 1st of Nov 2018."
So you will not be forced to do a KYC apparently but the unverified withdrawal amount will be limited to "only" 2 BTC per a day.
It doesn't seem that bad imo, binance has the same system in place right?