By "enlightened" what do you mean exactly? I think everyone is at least passively aware that Facebook probably knows a lot about them and is growing more powerful. Perhaps they can't read the contents of a browser cookie to discern that logging out doesn't actually mean logging out, nor can they really understand the website as a huge mass of code and databases that someone is making billions on, but they know what they're putting in and getting out. For most people that's enough.

I really think people of my age (19, but I would venture to say teenagers and people in their 20's) are too young to care about this sort of thing, they're living the most open time of their lives anyway. We have grown up with the internet, and we're pretty much used to it. Not to take a guess at your age, but I have a feeling most HN posters/techbubble bloggers are older and have seen a lot more happen in terms of the internet evolving. I imagine if I had watched the internet materialize from the beginning this would be alarming, but I was practically born into it if you take into account the fact that I haven't been using the internet for more than about 9 years. And while I do understand what Facebook is doing probably a little better than most of my peers, I still can't really let myself care. I personally never felt I give them much of anything significant. My existence online isn't that important to me right now. And free music is pretty great.