Actually hilarity and what is or is not hilarious is completely and totally subjective. So what one finds hilarious another may not and that's just what makes the world go round.
If they images offend - then one has the option of not looking at them.
It's clear that many of us share a demented sort of sense of humor - and the Stevie of Death images are not meant to be disrespectful - but I can understand why some would find them to be so.
Really there is no easy answer here...except to just not partake in the action if you find this sort of thing unsavory