It's a common piece of criticism: Facebook is nothing but chitchat and gossip, I don't see why I should use it, I don't want to know useless things about other people's lives. While I may consider that to be partially true, I think people are way too harsh when judging something, and tend to just hit extreme opposites.
I understand those kinds of comments, but I also understand the importance Facebook and many other social channels have for businesses (disclaimer: I work in a social media agency). And while I don't disregard people who take and defend this position, I do have something against only looking at one side of things.
You can argue that swearing is impolite, but that doesn't mean that the ability to speak is such a bad idea.