it is unknown countries which not have any effect of bitcoin but how they know about users ?? because no one can track you when use bitcoin
All of those countries are well known and their bitcoin ban as well. I really don't know how do they control the bitcoin's use on their territory indeed. I just can suppose they block all crypto oriented sites, it is not so hard to do for the government as someone may think.
Well, we all understand how those countries mistaken about the progress which bitcoin is bringing with itself. I hope soon they will realize it themselves and open their borders for bitcoin and financial progress!