[MerelyMortal]

You personally know lots of people violating the law by not paying taxes.

Just because the government doesn't know about the exchange does not relieve the parties of their legal obligations.

Whether or not a person believes they should pay those taxes are immaterial to the fact that they are owed.

[35amxn35]

I don't condone it, but you could technically kill a person and as long as you don't get caught, you're free to do it.

Kind of a "Don't quote laws to men with swords" situation