It doesn't work as a "screen saver" on most devices, as the risk of phosphor burn in is pretty low nowadays. Isn't it still called that in OS X regardless of di

It doesn't work as a "screen saver" on most devices, as the risk of phosphor burn in is pretty low nowadays. Isn't it still called that in OS X regardless of display type? Also, a "fart button" is not physical object, can we still call it a "button" (Ceci n'est pas une bouton de pet.)?