You have to read their TOS first, but as per my experienced with other exchanges with KYC, somewhat they have a threshold on how much you can withdraw without passing any personal documents and maybe that's what Coinsbit exchange TOS might be. I know most of the time for us crypto users, KYC is really a pain in the ass, but right now most exchanges are requiring it. So if you don't like to pass personal information then there are other methods as well.