Many countries seem to have a hard time defining and regulating Bitcoin. The current legal framework is not enough to deal with cryptocurrency revolution, thus most countries still have not considered Bitcoin to be an additional legal tender just like the function of their central bank issued fiat money.
However, the Bitcoin revolution is fast reaching the nooks and crannies of many countries all over the world, what with the use of the modern gadgets and the internet. Sooner or later, financial authorities have to come up with the necessary framework with which cryptocurrency can work with.
For now, let us just enjoy the "not yet legal but not banned" status which can anyway fine with me so I can still avoid paying taxes.
Indeed but i think there are only few fortunate countries that not legal but not ban status so i guess the people should not miss the opportunity of earning Bitcoin without tax as the current progress shows that many countries are now regulating and legalized Bitcoin but only few of them imposing free of Bitcoin tax like Japan, France and Germany. Soon our country will formally regulating Bitcoin and we will just hope that they will impose no tax or less tax too so that many will be encourage to join this investment.
As for me, bitcoin tax isn't appropriate for decentralized currency because it has not been regulated into maximum tolerance. If those countries you mentioned was having bitcoin tax, I guess that's part of their bitcoin regulations though people has invested to digital currency will definitely gaining confidence towards taxation and possible ignoring of ban speculations.