I'm not gonna name names, but someone just mentioned paying for weed with a Square account. It'd be equally easy to use Paypal, Venmo, Bitcoin (RIP) or any of the myriad mobile payment systems that allow you to send money from your phone.
I mean, think about it: As long as you don't put some idiotic note on your account like "drugs", virtual currency would be a really easy way for drug dealers to take one very dangerous aspect of trafficking out of the equation — as long as they took some precautions.
So have you ever bought drugs using a mobile payment system? Is this a really tired scheme that a innocent lad like me just hadn't ever heard of?