An example of some of these people are members in this forum, so I am want to ask a personal question, do you think of yourself as a bad citizen for disobeying the government? Do you agree that you are a violator for breaking the law? Now see things from a religious side as well, by disobeying the government and investing in bitcoins, are you committing the sin of direct disobedience?
do you think every law that the government have passed should be followed? Do you follow every law the government have passed? do you consider yourself a bad citizen for not following all the law the government have passed? the thing is, it doesn't make you a bad citizen if you do not follow certain laws, especially if the law you are breaking does not affect anyone in any way, including the religious side as well.