Not that I disagree with you, but I think there can be common-sense application. Lets start by asking: What is a money transmitter?

If I walk into a shop and pay someone $5 to send $100 to you, then yes that person probably needs to be licensed otherwise the threat of me losing my funds could be quite high....

No one is "hiring SN to transmit money" though. Our primary use of this website is to communicate with each other and fund new and creative content. The fact that some of our content also gets funded does not magically transform SN into being a "money transmitter".