Threads like this help date GAF so particularly.
There is a small contingent of new wave gamers on GAF (I am including CoD in this). There is also a small contingent of gamers on GAF who remember the colecovision and other very old gaming devices.
But then you look at topics like the Halo topic, which is far more popular here despite the game itself being far less popular overall, and you get a sense of where most of GAF comes from: a hugely disproportionate number of GAF members are essentially SNES/PS1/PS2 gamers whose tastes have remained steady in to the modern age. This doesn't mean that none of you fit that basic description, by the way; these are general rules, not absolute ones. It explains the relative hostility to games like CoD and WoW and to platforms like Facebook and the Wii despite the huge popularity of all the above.