For starters, why claim to be a "no-KYC" casino when you can actually request KYC verification from any player at any time?
But, how did you know that they will request a KYC later on? I don't think you have a crystal ball there to see what can happen in the future. Maybe they really mean it when they say "NO KYC". They are only a starter so they can start like this but if ever they change their policies later on then they better make a proper announcement in regards to that.
Second, who gives you the legal right to collect any user personal information? What is your company? Where are you registered? Which jurisdiction?
Again they say they don't require a KYC but if they are planning to require it then they need to register their company first in a legal way and obtain a gambling license before they can do those things. Unlicensed sites that asks for a kyc is illegal and should be reported to the authorities if ever we have seen one.