As long as the casino uses games from third parties, KYC is required but if the casino only provides original games then KYC is not required or they have the choice to implement it or not. Talking about Stake.com yeah it's just about time, until the time comes when every user is required to go through KYC and if we ask the Stake.com team of course they don't want that but they have no choice because business must go on.

As far as I know level 1 is enough to get a deposit address and start the game, but have you ever thought what KYC level 1 means? it doesn't mean anything at all because they can use fake data it's just that the risk is waiting when they win something big KYC level 2 is likely to be activated. Some of my friends said for now $10,000 withdrawal does not require KYC while in other casinos withdrawal of $2000 requires KYC.