But we can still track the addresses and trace them till they try to convert them into cash. It would have been better if the exchanges kept their purse tight.
it does need skills to tracked them when it gets into exchanges and then mixers. a lot of people are not even a hacker but are trying to mix their coins to prevent it from getting traced specially if it goes in and out of the casino site. i don't know if its the best practice to exercise and hackers aren't know to it. laundering means its going to be handled by authorities.