I guess the flip side to this has historically played in the favour of the authorities. Ill-gotten gains would be laundered through a casino where you’d turn it

I guess the flip side to this has historically played in the favour of the authorities. Ill-gotten gains would be laundered through a casino where you’d turn it all over over the course of several hours playing a game with a low house edge. You’d lose a bit to the house, but now have some potential legitimacy to how you have the funds. I assume under this approach the authorities would have claimed the full amount you started with and not what you were now left with. Crypto just happens to have been a casino where people have been winning.