Being an artist is tough, the notion that you should be able to support yourself while being one is relatively new.
The title suggests that White didn't pay for anything (nice way to get people's attention!), but she's not advocating music theft.
When she writes that "I've never invested money in them," it's at the conclusion of a paragraph about not buying physical products (she mentions T-shirts as an exception).
She also wrote that she "didn't illegally download (most) of my songs" and the copies she did make were during her job as a DJ
However inconsistent that all might seem to be, the point is that she wants to support musicians
she wants a convenient way to listen to music that results in "more money going back to the artist than the present model." What's wrong with that?
The real problem for musicians these days is that music isn't very popular.
If I could download a car I would. And so would you. The world would be a better place if you could.
SHUT YOUR FACE YOU TEA PARTY MARKET LACKY!
The vast majority of artists do not make significant money on the road. Until recently, most touring activity was a money losing operation. The idea was the artists would make up the loss through recorded music sales.