That's exactly why I like Spotify - it doesn't shove the social nonsense down my throat like everybody else. Don't take it the bad way but I don't care what you, or anybody else with very few exceptions, thinks about this or that album.
This doesn't happen at all with Spotify. And maybe it wouldn't work due to the rather mainstream audience / user base the service has. The problem remains however: The music I listen to and buy is very rarely discovered on Spotify. I can't share the rave reviews of Discover Weekly at all. - it's very mediocre to me.
My Discover Weekly used to be pretty mediocre until I started better curating my playlists. I'd grab a playlist, throw it on in the background and call it good enough. There were certainly songs that I didn't like playing, and the algorithm had no way of differentiating what I did and didn't like.
I pruned my playlists so that the music playing is only stuff that I highly enjoy. This made a huge change to my Discover Weekly and my Daily Mixes.
Yet, Discover Weekly keeps recommending me music that is already known to me (or even part of those playlists) or simply not that relevant. My Bandcamp feed does a better job.