Bitcoin has always been taxable.
It just has been tougher to enforce compliance.
As time goes by, action taken by authorities and thereby compliance will increase.
this is not true, before 2014, IRS and other didn't taxed it at all, you was free to evade with the gain from bitcoin, and even now it is only in a few states
if in your country btc is taxed then you can just deposit your fait(conveted from btc) in a country where it isn't