Is there any real way to be anonymous while using Bitcoin and actually exchanging it to fiat currency? Are there any exchanges that are not regulated and don't require any authentication e.g. an ATM that gives you cash for Bitcoin?
"How do I use this law enforcement surveillance network to commit a crime?" Don't!
It's still potentially leaky because you're relianing on the buyer to not get that traced back to you.
I guess like for several security topics: the process to find my identity is too expensive/impractical/takes too much time. I mean, we know it is possible to use brute force to crack encrypted data, it just takes a trillions of years or trillions of dollars so it becomes practically impossible.
but fwiw with monero they don't know where the crypto came from. Technically, you could have mined it in the early days. So as long as you have to report on sale only and not origination, everyone can party on