The key value proposition of facebook to me is that it makes those types of connections easier to scale up. Do I really need to call 200 people a month to see what they're up to and how they're doing? It's much better to have a constant feed of information that you can interact with as you can and want.

But it doesn't provide that value any more. It shows me ads and posts from a handle of the hundreds of people I'm friends with.

So you're right that caring is a proactive act, but that doesn't invalidate that initial value proposition at all.