> anonymity-enhanced virtual currency (AEC), in a practice known as “chain hopping”; and using U.S.-based business accounts to legitimize their banking activity.
Their problem was that they "closed" the money circle by sending it to real bank accounts. That's how they caught their trace. It seems that laundering billions of dollars is not as easy as they thought haha.
The question is perhaps what is the most one can use and how to do it. Privacy coins probably play a part in this equation.
You maybe could slowly, and methodically convert it out of the privacy coin into a spendable form when needed.
They could have possibly gotten cash from cartels at a steep discount, but that story would probably have ended with a richer cartel and two dead nerds.
Maybe these guys are thinking if you're going to be a criminal, you had better make the juice worth the squeeze. Live large, party extravagantly, and probably just rent everything from hotel rooms to yachts so there's less for the authorities to eventually impound when it catches up to you.