So … we should never share anything with a portion of the world that we wouldn’t be willing to share with EVERYONE ELSE? The thing is, Facebook persuaded millions of people to share stuff about themselves under the guise of privacy. If Facebook hadn’t promised its users privacy, many of those people wouldn’t be posting pictures and updates in the first place. This is like arguing that you shouldn’t use online banking, even if your bank guarantees security, because they could take that security away at any time, and that would be your problem for willingly posting account information on the Internet. Or arguing that even though your email account is supposed to be secure and encrypted, Google or Yahoo could decide at any time that your email archives should be public, and you’d be shit out of luck—you shouldn’t have been sending all those private emails over the Web. The Web is inherently insecure!
This.