Do you consider Bitcoin(or cryptocurrencies) in general a social movement? If you consider so, social movements need a formal organization to support the movement. Is there a formal organization behind Bitcoin?
Bitcoin and cryptocurrency can be considered a social movement, since cryptocurrency originated in society and the state and their governments had nothing to do with it. Thanks to the Internet, everyone has the opportunity to join this movement. Working with cryptocurrency, people get to know each other, unite in interest groups, and I don't see the need to create any additional organization to support the cryptocurrency.