They pay you the first time but as you grow your balance and income they block your account just to prevent you from withdrawing.
I've cashed out more than 4 million satoshi. Was just paid today. they still pay at higher levels. They just don't pay members who violate TOS.
How you manage to earn that much

I have small youtube channel really small and managed to invite over 60 referrals.Imagine what someone with 100k subs can do.