1. Take cash, load it onto prepaid cards.
2. Buy GPU instances.
3. Mine crypto.
4. Pay for compute with #1
5. Sell crypto
6. "Clean" cash
I just don't have the mind of a criminal I guess, it sounds like this was figured out a long time ago.
There are (were) enough random kids in thier basements making millions on crypto that it probably wouldn't turn too many eyebrows either by the IRS if you actually tried to report your crypto earnings cleanly, they would likely spend their efforts chasing down the people who weren't reporting.