> It finds music I like, regardless of musician effort.

This isn't really true...musicians must put forth a ton of effort just to be part of the songs that are recommended to you. Spotify favors and rewards those who promote their music on other platforms, since it scours the web for articles mentioning your name and people posting about you on social media in order to determine how far up in the "rankings" you should be when someone asks for a similar sounding song.