Thought about that, then realized that we (as in most of us) hardly use cash anymore and cash would also require an in-person exchange. It seems that crypto (by accident, not design) fixes most problems faced by criminal activities
> No claims of magic, but crypto is undeniably well-suited for and utilized by criminals.
All right, but not all crypto is used or crime, in fact most of this volume is used for speculation, hoarding and to circumvent capital controls (getting one's dough out of China).
The thing is that most of it is traceable. Me and my colleagues have witnessed the CEO of a company in a neighbouring office being arrested and extradited to the US on charges of money laudring and fraud using crypto assets (BTC and ETH specifically). So the arrest/indictment of these two doesn't come as a surprise, it was bound to happen as soon as they got caught or stepped out of Russia.
I presume because it is clear what community bitcoin came from (the cipherpunks). It is obvious that this community would want bitcoin, and it is not a criminal community.
Besides, bitcoin isn't tailored perfectly. And the coins that are tailored better mostly seem to have libertarians and people who enjoy the tech building them.