I have met with someone who won 6 million dollars from another place, which I will not name, and didn't do a bit of KYC at all, from 300k to 6 million so he wasn't poor to begin with, all the points for a money laundering but it wasn't asked. So, do not defend it with just money, this place asks it even before you start.
Sorry to ask, but is this other place (I assume it's a casino) licensed!? Because as far as I know any regulated and licensed business has to declare and report transactions above a certain threshold (depending on the license provider and the county where the casino operates).
The good thing about Roobet, though, is that they ask for kyc (level-1) from the moment you create an account and don't wait till you make a withdrawal request as many other casinos do.
I believe all this discussion about kyc is futile and won't change anything. So if someone isn't OK with verifying his identity then simply play on casinos which do not ask for it.