So according to the @SpotifyCares Twitter account, there's no way at all to turn off desktop notifications. None. Which seems insane to me! Spotify is the only app that sees fit to blow up my OSX dock with notifications multiple times every week, yet there's no functionality to let me control which notifications I see - or even if I see them at all!
So, obviously:I'm proposing that Spotify let users control this! I, like most people, do not have a deep personal relationship with 100% of my Facebook friends, so I don't need to know whenever some random person I went to high school with gets Spotify. I have zero interest in sending them anything or interacting with them on Spotify in any way, so it benefits neither me nor Spotify to pop up that red notification and nag me to view it before it goes away.
Anyways, yeah! This all feels super obvious, but since the @SpotifyCares Twitter account told me to post this here, that's what I'm doing. "New idea:" STOP BUGGING ME WHEN PEOPLE I DON'T CARE ABOUT JOIN SPOTIFY. USE THE OSX DOCK NOTIFICATIONS SYSTEM RESPONSIBLY. Thank you.