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.
As stated in a documentary regarding bitcoin, if they can`t stop it they adopt it. And I think that this case is something similar. They tried to stop it but when they saw that it can`t be stopped and somehow will proceed because there is not a central, they decided to adopt it and earn as much as they can from it.