Wether Cryptocurrencies are Legal or Illegal is a bit of as red herring question. The reality of Cryptocurrencies is that their existance is a direct attack upon upon the cental banks and their debt based fiat currencies. Cryptocurencies are also a form of fiat currency but with a big difference, they are not (to my knowledge) debt based. Debt is the chain used to bind us to their system. Resist in any significant way and your debt will be used to crush you. Cryptocurrency is a method of exchange that is not regulated by debt. If we transfer the wealth we individually generate to a cryptocurrency in signifigant amounts then the debt based fiat currencies will begin to lose relevance. The debt based slavery will become threatened. Expect there to be a major assault on cryptocurrencies in the near future and be prepared to confront that assault. The fact that you use cryptocurrencies makes you an outlaw in the bankster's view. They just have to come up with a way to stamp it out that will not bring the sheeple into awareness of their debt based slavery thus causing a major upheaval in their hegemony over the masses.
Legal or illegal? In the eyes of the Bankster run governments, the word Justice is misspelled and should really be written Just-Us.