Delete Specific Listening Data and Count Majority-Played Songs

I would love the option to delete or exclude listening data for specific songs, artists, or albums rather than only deleting listening history by date range.

For example, I used to listen to piano/sleep music on Spotify overnight, and those specific songs now heavily affect my stats.fm listening data. I do not want to delete an entire time period because that would also remove music I intentionally listened to during that same timeframe. I only want to remove or exclude certain tracks from my stats.

I also wish stats.fm would count songs when a user listens to the majority of the track, rather than only recording it if the song is played all the way to the end. For example, if someone listens to around 90% of a song, that should still count as a stream in their stats. A song should not be excluded just because the user skips the final few seconds.

Features that allow users to select specific songs, artists, or albums to remove from stats.fm history, along with more flexible stream tracking based on majority listening, would make the data much more accurate and personalized.