I find a slightly different problem: these conversations don't come up IRL <i>at all</i>, because they've already occurred online, and this prevents a more meaningful discussion.<p>To use the example from TFA, if someone tells you that their ex got in contact with them recently, you might ask them how they feel about it, what [s]he's been doing recently, and so on: you'd have <i>a conversation</i>. If you've already seen this online, it's likely that it would never come up at all - and you probably wouldn't ask those questions on your facebook wall, as it's not private.<p>Facebook is particularly bad for this, because it ostensibly covers almost every aspect of your life: replacing conversations with data points.