Here's a chart about what all the cool kids are whining about this season: Facebook Privacy.
The chart is elegant and expressive. Not entirely exactly true, of course, but elegant and expressive. It's kinda, sorta true, though, because in small blue letters near the bottom, it does quietly specify "(default settings)"...
Is this really the end of the world? Do we have to idiot-proof everything so hard and deep that there's no human initiative involved in anything? Is "too dumb to be even peripherally aware of anything going on around us" really the threshold we're striving for here?
Yes. The "default" settings of Facebook might allow you to share more information than you want to share. You still have to -input- the information first, and there are readily available options right there to allow you to decide exactly who sees exactly how much of your information... Up to and including big red blinking, glowing, option fucking one: If you don't want people to see it DON'T POST IT ON THE INTERNET!!
If that's just too difficult for you, you may want to freak out in fear, take outrageous precautions, and perhaps sue someone over these other risks:
Humans (default settings) will freeze to death in as little as an inch of snow, or no snow at all. The front door of your house (default settings) will allow anyone off the street to come in and take all your stuff if you pop out for a burger. Your car (default settings) won't go anywhere, and if you turn on the ignition and put it in gear (default settings) it will drive your ass into a tree.
I swear, people... Anybody who thinks they have a valid complaint in "But... I was supposed to read the directions before I posted all my personal information on the internet?? I was supposed to read and understand the legal agreement before I clicked the button that said I read and understand it?" deserves whatever happens to them.