The only reason I can logically accept Frank Castle shaving or waxing his chest is because he knows he's going to get a ton of wounds and clean flesh is easier to stitch shut.
@ god, please let me have a hairy chested man on tv, why must ALL the fella’s on the tv screens be waxed like smooth baby seals? sleek like svelte dolphins? these are grown men? not preteen boys? (some) men have hair? i like woolly mammoths? I like happy trails and truly fuzzy navels? and big strong unwaxed arms?
but, for the sake of not losing my mind, i will accept your logical reasoning for this particular case :P