Do they mean to say the developers?
"Those who are intermediaries
in the transfer of virtual currencies from one person to
another person, or to another location, are money transmitters that must register with FinCEN as
MSBs, unless an exception applies"
So that's exchanges.
Nothing about miners. Nothing about mining. Nothing about selling coins for USD$. Absolutely zero technical knowledge, merit, insight, or intelligence. Exchanges are regulated and fulfill the KYC/ etc laws.
Lots of Four Horsemen of the Infocalypse, though.
The method you mentioned is completely exposed. In other law. The being is neutral as the developer's target is not for money. For operators, the guideline is on bankers and sellers.