The thumbed up songs playlists are nice features but they don't portray ones degree of favor for any particular song. Thumbs are rather binary in nature, a song has your thumbs up, or it doesn't. But if the platform were to track our use of the replay button, keeping a replay total for each song, for each user, and then making that list available to us in order of most replayed on top, this would make for a whole new method of rating our degree of favor for each song. I believe this could benefit both the users and the platform.