In casinos, transactions over $10,000 are automatically are automatically reported to the feds.
i'm not American
but
how many casinos are in vegas?
x $9,000
walk in buy chips, play a couple of games -doesnt matter if you win or lose- cashout $8,900 worth of chips go to next casino?
tho the casions dont call themselves "mixer services"

This whole AML stuff is a sham, doesn't catch the big players, they already successfully use banks, just another imposition on the little guy who probably wouldn't have a reason to launder money...