I want to say people on GAF and IGN are trolling with the "preorder cancelled" comments, but people react in the strangest ways.
Rumor: Xbox one is getting 12 gigs of ram. Headsets will be included in Xbox one. Kinect-free xbox incoming.
Random comment: Hurr Durh PS4 preorder cancelled.
People have a habit of taking rumors without the necessary grain of salt. Just relax and wait for something to get confirmed and then continue to use your brain from that point on.
Some people don't have enough responsibility to preorder a 4 or 500 dollar product - especially with how fast their moods swing.