They were meant for long-distance families but ended up being for trolls and fangirls.
No, they weren't meant for that.
Social media for me is significant and delightful to use. I can easily check up on sports news, political events, or my friends. Contrary to what people think, it doesn't harm your relationships if you use it in the right way. It's utter tosh to think that you'll just coop up at home and communicate via phone once you have social media. If we're going out, we're going out, and tweeting 140 characters can't buy that, not for a price.
Social media let's me come into contact with people I can't meet, strangers I'll never see, but share common interests with. I can discuss and follow other football fans which I normally won't even dream off. People from all around the globe. That is precious.
And more importantly, it let's me maintain contacts with close foreign friends.