It's a cancer on socialization as we know it.
It allows us to pretend we give a fuck, which is just disingenuous at best. We don't care, we're bored. There's a distinct difference. Then there's the duck faces, stupid assholes reposting photoshopped bullshit, and all the "OMG Liek this post or you hate bunnies" shit that makes me want to scream.
I dunno it's ok and it's fun to be able to bust peoples' balls 24/7, but it's ushered in a whole new era of fake people who think the world cares.