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.
Because ponzi is the definition of scam, you can just search on wikipedia, it will tell you its a scam, if you search roulette or dice it doesnt say its a scam. Provably fair and odds, what are your odds on ponzies? Uncertain, no one knows, the owner could run any minute with your money.
Its like smoking, its bad and everyone knows it, yet people chose to do it, but that doesnt make it a good thing, it only makes them stupid
In response to what you are saying, I'd just quote Dooglus...
I personally don't consider any kind of Ponzi to be scammy unless they are selling it as guaranteed profit. Most of them promise to return X% profit within Y time because the are great at trading / mining / whatever. If they make it clear that you only get paid if enough people join after you, then that turns it into a game where everyone knows the risks, and I don't see anything wrong with that.