You do realize you get killed or they force you to do thing if you do not pay a tax right? This isn't like some good time terrorist group. They kill their own people all the time for reasons and for no reasons. I don't understand how you can think at this level. THEY ARE TERRORISTS and they are gonna take what they want. They will take your computer or kill your wife for not paying them or whatever. Plus since terrorists know about btc and all that they will know people are hiding it, so that blows your whole argument out of the water... people will gladly give up money to save their own life.