Most/least essential social additions to predominantly non-social apps?

SoundCloud went live 18 years ago as a launchpad for independent artists to share their music. Now, it’s adding more tools for listeners to share what they’re into.

The music streaming app, which ranks above streaming stalwarts Pandora and Apple Music in terms of monthly average users, introduced new social features on Thursday, including:

• “Liked By Your Crew”: a daily playlist based on what your friends (or the artists you follow) like

• “Trending Trackwall”: similar to X’s “What’s happening”

• Recommendations of users to follow

Spotify, which once upon a time made noise about buying SoundCloud, amped up its own social features just a few months ago when it began allowing subscribers to direct message each other.

It’s not like either streaming app is turning up the social element to 11. Users are still going there for the music…but the tweaks could make it a little easier for communities to form around shared fandom.

I'm curious: What are your favorite social add-ons to predominantly non-social apps? And your least?