particularly on the expectation of anonymity:

"If at this point in Internet history you think you're really anonymous/pseudonymous on the Internet, or that you have a right to anonymity/pseudonymity on the Internet, youre kind of stupid. Yes, stupid, and theres no other way to put it."

http://whatever.scalzi.com/2012/10/16/gawker-reddit-free-speech-and-such/