Probably not a popular subject, but something that should be discussed since we don't live in a free market.
Just opening up a general discussion on it.
Bitcoin and altcoins are no different when it comes to taxes. Sure, they are different coins (obviously), but whatever you make must be reported, legally speaking, to your respective government.
Personally I think it is a bit complicated given the nature of the crypto market (extremely volatile), but in any case it does not exclude anyone from their legal financial obligations.