This is yet another step on the path of Bitcoin exposing that it is not the operational-semantics/capability/irreversibility based cryptocurrency many people wishfully thought that it was. The POW-based solution to the Byzantine agreement problem was quite novel. It's unfortunate that this novelty was wasted on the same old title-based accounting rather than something more appropriate for a fungible commodity. A syst…
You will buy bitcoins at regulated, fully legal and non-anonymous exchanges. Then, you will exchange bitcoins for A-coins at anonymous, online-only exchanges. Since they can operate only on digital currency they need no physical presence and no connection to the regulated global financial system and will thus not be vulnerable to government regulation or control.