from http://fincen.gov/statutes_regs/guidance/html/FIN-2013-G001....
That particular section may or may not cover Paypal, but certainly you don't get out of the money transmitting rules by not dealing with "money."
I never said that Paypal isn't a money transmitter, nor that there are not any other FinCEN rules both PayPal and others have to follow.
As the other responder pointed out, Paypal would be a money transmitter under FinCEN regulations. What FinCen was saying is that Bitcoin and other digital currencies aren't "currencies" in the legal sense because they have no government backing. However, they are "virtual currencies" in the sense that they otherwise function and behave as true currencies. Consequently, the FinCEN regulations apply to Bitcoin and other digital currencies.
FinCEN further stated that miners and persons who are using Bitcoin in non-currency transactions(i.e., paying for services, physical goods, or non-digital-currency intangible goods) are not subject to the FinCEN regulations because they aren't exchanging one currency for another, directly or indirectly, and they aren't functioning as commercial money transmitters.
Sigh.