I'd love to ride without a helmet. Feels better. Looks cooler. Like the original poster said, "Its FREEDOM!!!!" However seeing as how I ride the Ice Coast, how i've been run into from behind, how I've been tripped up by the mysterious rock that looked like a piece of snow or twig/grass pertruding from a thin area that I didn't notice causing me to slam backwards to the ground I will FOREVER wear a helmet.
Falls can happen anytime and I would like to be able to return home to my wife in the same condition I left.