Stake's level 2 KYC verification is not difficult. But there may be users who feel uncomfortable doing KYC.
Yes, you only need a driver's license or a national ID, as basic information and verification. If you fail to do KYC before the date, your account will be set to withdraw-only mode, so if you're part of the Stake.com campaign, you can opt not to.
Even if you occasionally bet, then you have to undergo verification, I'm sure some users will let Stake.com go and go for no KYC casino; as stated, there are many benefits from doing KYC Let's see now if the user numbers will go down.