They are making a step already regarding on taxation on those services or things which are related on bitcoin earning. When we do talk about direct tax on it then its not possible that's why they would regulated instead into those services which they can able to see that they can sip out taxes on it which one is on trading exchanges which they can really impose or implement deductions on each trader to pay taxes on each profit that they would made.They can already see that its booming up and we are already talking huge money on here and its not good for their eyes to pass by those possible taxes that they would able to get.