[free_everybody]

- Buying illegal drugs.

- Transferring "value" to another person without oversight.

That's pretty much it. And the latter wouldn't exist if you couldn't do the former.

[cjbenedikt]

you can do both with cash

[free_everybody]

True. There are many more limitations with cash. The most important example might be illegal drug quality. With cash, you can give a friend of a friend some money for drugs. Who the hell knows where they got it from. With crypto, you can buy from an online marketplace complete with thousands of reviews and quite possibly much safer drugs than what you may find in your local community.

[matwood]

Except with cash I have to physically interact with the person. With BTC I can operate 'as cash' with anyone who has internet access.