I totally agree and I seem to recall this functionality was part of Pandora at one point because I know I've done it before, which is why it's so frustrating now to learn that you can't - as the author of this idea says, I've accidentally thumbs downed things but then don't remember which station and I have waaaay too many to search through every single one. And contrary to wisepeppy's comments, if you don't know which station you thumbs downed something on, how can you fine tune it in the future since when you're playing the station you wouldn't know it's excluding certain songs (again unless you checked on every station which is time prohibitive). Also, if your musical tastes change over time (as they often do) it would be helpful to know across stations which songs you've thumbs downed if you at some point changed your mind/musical tastes.
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