I'm pretty sure Facebook never had a non-mystery feed algorithm. Before ML appeared, I'd guess the algorithm was hand-tuned. I haven't heard anyone express a l

I'm pretty sure Facebook never had a non-mystery feed algorithm. Before ML appeared, I'd guess the algorithm was hand-tuned. I haven't heard anyone express a liking for the FB feed algorithm but I remember a commentator mentioning that FB beat all the other social networks of the time because it turned the noise down tremendously. You weren't bombarded by that those people who posted once an hour and that was big for the average user.