Here's some unpopular opinion, Google+, the failed Google social network, was actually fine.

To just get the bad things first, of course it failed, of course it was Google trash, and of course the time when they tried pushing it to sync with all your accounts was really dumb.
But honestly, it wasn't that bad by its own structures, the poing of separating people by circles was interesting, and the group functionality was pretty fine, I remember (with some rose tinted glasses) being in a bunch of games groups doing dumb preteen stuff like discussing FNAF and PokΓ©mon trainer RP (feel free to judge me). It's a "don't really want you back at all, but still have fond memories of when we were together" relationship.