If you want to keep something private, don't post it on the Internet. Solved.
God, people are stupid. The latest wave of the "Facebook privacy" hoax is making its rounds on the web, so do yourself a favor and ignore it. I've seen four of my friends (soon to be unfriended friends) post something that starts with:
“Now it’s official! It has been published in the media. Facebook has just released the entry price: $5.99 to keep the subscription of your status to be set to ‘private.’ If you paste this message on your page, it will be offered free (paste not share) if not tomorrow, all your posts can become public.”
And then there'll be a big long post of legalese detailing how:
"By this statement, I tell Facebook that it is strictly forbidden to disclose, copy, distribute, broadcast, or take any other action against me on the basis of this profile and or its content. The actions mentioned above also apply to employees, students, agents and or other personnel under the direction of Facebook.
The content of my profile contains private information. The violation of my privacy is punishable by law (UCC 1-308 1-308 1-103 and the Rome Statute)."
This is the legal equivalent of screaming out your window and expecting your online privacy to be protected.
You look like a moron who just forwarded one of those "forward this message to seven friends by midnight or you'll have a bad sex life for seven years!" things that only people who had dial-up Internet connections will remember.
If you want something private, don't post it on the Internet. There. Do that.
And no, Facebook isn't going to start charging people. "We will always keep Facebook a free service for everyone," is Facebook's official statement, and it makes sense. The company made $2.5 billion dollars in the first quarter of 2014, so they're not hurting for money. The fastest way to alienate their users and piss everyone off would be to charge for using the site. And with billions and billions in the bank, they would never, ever do that.
And if you're really concerned about your privacy, just delete your account. Then Facebook can't own any of the stupid things you post.
And just give things a tiny Google before assuming it's a great idea and posting it. Check out Snopes, too, because they actually check their shit and decide whether things are fake or not.