As you can see this is the most successful Ponzi I've seen in a long time. And I feel that Ponzi need to be marked with negative trust only when they camouflage their scheme and claiming they are not Ponzi. If it is transparent there is no need for negative trust imo.
If he's honest then I agree.
But when he writes "You will be able to earn bitcoins and double them in a matter of days. All youll need to do is follow the rules of the game. There was nothing like this before!" then he's lying. Most people won't be able to double their coins. Most people will lose coins. And so it's a scam.