Thru some clever javascripts loading the exitpages of a long list of major sites this site logs you out of all of them at once. No waitin no nothing.
I you click the link, boom, you are out. Will sneak into countless tries of griefing. Either a minor hazzle or potentially major hazzle.
evolution, from goatse to rickroll to superlogout
Do not click unless using a new browser or in inkognitomode if you do not want the hazzle of relogging to all of them.
http://superlogout.com/Heads up.
Saw this at Reddit.