Here's why I downvoted you:

>This is one of the few times I'd ever say that government crackdown is a good thing. One country having multiple currencies at the same time could become a big logistical headache.

You think governments should crackdown on and seek to imprison people because they engage in activities that cause logistical problems for the government? And you think this is one of the few times that a government should intervene? Seriously?

> It would definitely have political and social implications. This sentence is empty of information. Every action has an implication. I would have upvoted you if you'd described what kind of implications rather than implying that having "implications" is something that governments should intervene in.