Since bitcoin and other digital currencies are such a game changer for the traditional economics systems, could there be any government policies that can be devastating to this new market? and even if governments in North America or Europe might not be able to do such things, how about policies from other more centralized countries that could bring the same effect?
Let's be honest here. Cryptocurrency is real game changer only when/if people will follow. As for now it is insignificant phenomenon used by few people - compared to standard banking.
Do we really think that regulation is needed for less than (most likely) 10 million of bitcoin users and even less altcoin users?
Plus, the only countries which potentially - by introducing some bitcoin related laws - can change rules of the game with cryptos are US and China.