The idea of a like feature on a platform that's supposed to be for you, your friends and family is kind of fucked in general. Likes, contrarily enough, encourage you to not give a fuck. Why bother responding to your friends or family when you can just click like, give them acknowledgment and move on to the next thing. It's bad enough on random internet forums, but if it's your friends and family you should put the effort in to actually respond to something if you actually care, otherwise don't. I think the discourse and posts on Facebook would be radically different without the like feature.