I would like the option of choosing whether or not Pandora generates thumbs up playlists. Can this please be a feature a user has the option of turning on or off? While I can see that other uses like it, I personally don't want to generate tens or hundreds of other playlists. Then it just makes my playlist list long and crowded and I have trouble finding what I'm looking for. This is also when I start to think Spotify has a much better user interface.