That's why sometimes it really need a hard documentation like asking a selfie verification so that the frauds cannot easily escape if they had been call their attention for some suspicious activities, but I believe the other members will not like this since the essence of anonymity will gone that's why this need a proper explanation by the house on why they will implement it if they have plans to do this in future.
Advanced KYC verification is definitely the wrong option since most gamblers like me sign up on crypto gambling sites to avoid these issues. Another reason is that crypto gambling sites allow gamblers to bypass the rules of their government against gambling.They should focus on some other solution to keep away scammers and allow their players to continue playing anonymously.
For example, they could only allow players of member rank or above in this forum to participate in their giveaways.
In any way, most of the users will fail the KYC/AML requirements.. because a lot of them are playing from "restricted" countries via VPN's. 
. I remember I got once a tip of 0.001 BTC (on another site) and back than it was worth 4$ and I was already excited 
