Please... A clever use of GA + Wolfram Alpha can reveal a lot of potentially identifiable information already. You can't expect the Internet to become a big part of our society and, at the same time, remain a place for complete anonymity.
(1) And of course society in general used to be and still is pretty anonymous. I can easily buy a newspaper in almost perfect anonymity through regular channels, apparently I need to take special precautions to get the same status online.