That is one of the most ridiculous things I've read on here.

A dry fire isn't good for any bow, even longbows. Anytime you fire a bowthe energy from the forward motion on the stringhas to be lost (well, actually transferred, energy is never lost) to something. That arrow is the something. Without it, your limbs, axles, cams and riser take the grunt of the obsorbtion of energy. You're lucky if the blow doesn't blow up in your face.