The department is starting out by subpoenaing 22 digital-currency companies and investors to get a lay of the Bitcoin land. They sent letters to the major Bitcoin players asking them to hand over information regarding their money laundering controls, consumer protection practices, source of funding, pitch books (for Bitcoin start-ups) and investment strategies (for Bitcoin investors). The recipients of the subpoenas are nationwide and include everyone on the “people making real money on Bitcoin” list, such as Bitcoin exchanges and processors, “ mining equipment” maker Butterfly Labs, and major investors, such as the Winklevosses, Marc Andreessen & Ben Horowitz, and Google’s venture fund.
There are many, discussions on many Reddit forums going on and some commentors seem to describe it as the end of Bitcoin. I don't understand.
What does this legal action mean for Bitcoin as a currency, in practice?