It's no longer driven by the ivory tower of the music industry.
The whole idea of playlists created by others is that it exposes me as a listener to the long tail of music, mostly composed of everything I want to listen and more. I discover new sounds based on the fact that I am now able to find that other person on the other side of the world who shares my taste. I can skip through the songs and get right to the content I want.
I drive my listening experience, versus the radio station.