Please stop comparing casinos with ponzies, even if a ponzi owner tells you exactly that he is going to scam you, that doesnt make it ok or equal to gambling, you have provably fair in casinos, you dont have anything when using ponzies
Why? Nobody is forcing you to gamble, nobody is forcing you to send money to a ponzi.
You make the choice what to gamble your money. You might get scammed by a dice site too, and something being fair or provably fair doesn't stop something from being gambling or not but that's up to the person whether they agree to those odds which they do by participating in them.