The biggest mistake (or genius move, depending on how you look at it), IMO that Facebook made is to show you cards in your feed about what your friends liked or

The biggest mistake (or genius move, depending on how you look at it), IMO that Facebook made is to show you cards in your feed about what your friends liked or commented on or when a totally random person says something about your friend. You don't know any of the parties involved in this but somehow are being shoved a photo, a video, or something else about them. Obviously this is the addictive part for a large number of people, an endless stream of crap to keep looking at. Had the exact opposite effect on me. It finally drove me away from Facebook. I just realized my feed was utterly useless at that point.