An (eventual) change in approach — Roughly four years after their introduction and outsized weight metric, Facebook finally adjusted how emoji responses factor into users’ News Feed algorithms. “Angry” responses are now a net-zero effect, with “Love” and “Sad” now worth that of two “Likes.” Facebook didn’t change this because of the obviously negative effects on society, though... no, it made the switch after receiving an inordinate amount of evidence showing that its users just “didn’t like” seeing them.
Manipulating societal emotion — The entire WaPo piece is well worth a read, if nothing else for the reminder that, back in 2012, Facebook engineers were straight-up experimenting with societal emotions. “An experiment in 2012 that was published in 2014 sought to manipulate the emotional valence of posts shown in users’ feeds to be more positive or more negative, and then observed whether their own posts changed to match those moods, raising ethical concerns,” the article recounts. Extrapolate that across millions upon millions of users, and... yeah. It’s creepy as hell.
You should delete your account if you haven’t yet, by the way.