Well, I think it is a scam because they are having a high payout which means that it is likely they will give in the start as most scam sites do and once they have enough traffic they will stop paying and starting to earn them. Also there is a form where people were talking that they reached till 75% payout but after that it is hard to find any box with btc but mostly empty or if they find btc it is around 100-300 sat whereas in start they send you 9k sat so they drop the sat amount as you will reach to payout which lead us to one conclusion and that they maybe scammer.