At the early stages Russia ruled it as illegal, China outlawed all withdrawals and some other country also spoke against it. But now everything seem to be smoothing up at least on the government side. Surely Bitcoin must be seen as challenging their authority. Is there something I am failing to see? All it would take is a 51% attack or a new law.
Most likely in Russia and China were convinced of the futility of their possible prohibitions. Citizens vseravno find other ways to use kriptovalyutu without going to exchanges and exchangers, which are controlled by this government. And openly to fight with their people, forbidding even the Internet, they are afraid. Now the same story is repeated in India. Reserve Bank of India banned its banks
to render services in the crypto-currency and this ban will soon come into force. Again, see what happens.