In order to make my Release Radar more accurate, I always select "I don't like this artist" when it recommends a song by an artist I don't listen to (anymore). However, it doesn't seem to have any actual impact on the playlist. These artists continue to appear. The only difference is that their songs function like unavailable tracks do on playlists. They're in gray font and they automatically skip. But they still hog the playlist. Considering I use Spotify a lot and I listen and follow lots of different artists, I don't think this is happening due to the lack of other possible recommendations.
Is there a way to solve this so that I can improve my Release Radar?