In a way, I think Facebook has painted itself into a corner. Part of the magic that has made Facebook so successful as a networking tool is the broad connections and the conversations that can start between so many different kinds of people.
Now that so many folks are worried about lack of privacy, there is a contradiction. Getting the word out is kind of the opposite of privacy.
Instead of falsely trying to offer privacy also (trying to be all things to all people), maybe they should have just said Facebook is not about privacy. It's about interconnectedness, sharing and publicity.
This might have mean a few less users and a few less billions in the corporate coffers, but it would be more focused on how this type of networking works best. Maybe it's not for everyone.
Alternatives to Facebook, that try and get off the ground while placing more emphasis on privacy, can't get the ball rolling. It's hard to create the network effect when people are behind privacy walls. Without a bunch of people interacting, other forums can be pretty quite and lonely.
There are various alternatives, though. I hear a lot about Reddit, but haven't used it that much. For photo sharing, I use Flickr a lot. I write long photo descriptions as an outlet for my writing. Flickr gets the pageview hits, but not a lot of feedback.
People, on Facebook, ought to come into it with and understanding of what it is; a networking forum that can make connections far and wide.
A lot of connections are not always what we might expect, but that can create new experiences. I am a fan of diversity in ideas, but I am also a fan of civility. We, as users, need to do our part too.