Hehe, I have the exact same problem. My wife is listening to music on my account from time to time and because of that Discover Weekly isn't that awesome anymor

Hehe, I have the exact same problem. My wife is listening to music on my account from time to time and because of that Discover Weekly isn't that awesome anymore. About the data, everything you are playing goes through Spotify. I have not implemented any playback feature, just a way to control your Spotify devices so that you don't have to go back an forth with the Spotify app. So of course, they have this data. I can't say the same about the dislikes. They are just a way for Noiseblend to filter your recommendations. I wish it would work the same on Spotify as lately I've been given some Russian artists to listen to and I don't understand a word from that language. (But it still sounded pretty good) I think that because of the way Spotify's algorithms work, a dislike button would be quite hard to implement without breaking the ML stuff. If you like edgy things, make sure to check out the Genres page in Discover. Almost every genre there has a "Not for the masses" popularity option which contains the edge of that genre, things that people haven't gotten to hear yet. Maybe that's for you ¯\_(ツ)_/¯ I'll probably write a piece about all I've learned and been through in the past 8 months, but let me fix the bugs first :)