Somewhat ironically, the reason for this is that the FSF holds the copyright to the GPL, so only they can change it. Well, you could probably change it, but yo

Somewhat ironically, the reason for this is that the FSF holds the copyright to the GPL, so only they can change it. Well, you could probably change it, but you couldn't call it the GPL anymore... and it would probably be copyright infringement. I wonder what would happen if the GPL itself was licensed under the GPL... I suspect it would start raining turtles. :)