its used to work. incredibly well, in fact, but only for the first few years or so

back when your entire feed was just the contents of your friends list, if one of those 'friends' starts posting things that get a little too crazy, you could unfriend them in two clicks, from the same dialog as the post itself, and you wouldnt have to worry about it ever again

try to unfriend an ad or 'promoted content' tho haha