Tidal stays on top of the social climate and its competition by allowing you to block music you do not want to hear. It is a page taken out by Spotify's book, which recently activated the feature after receiving pressure from its users.
Blocking of artists or specific songs on Tidal affects My Mix personal playlists and track radio. If you do not block your selection (s) in the Tidal app settings, the previously blocked song or artist will never be played back on your account.
Tidal's addition of artist / song blocking is great for those scenarios where you want to avoid an earworm, or just have an artist that you loathe and don't want to listen to. After Spotify came on fire to remove the singer R. Kelly's songs (after recently accused sexual abuse and violence) from his playlists, but not entirely from the streaming service, it would make sense that more music streaming platforms (like Tidal) would go against giving their users more control over what they are listening to.