These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Nightmare Fuel : Pretty much everything in the entire story, but especially the entire town and its inhabitants lovingly recreated out of rotting, cut-up, mangled corpses. And by lovingly recreated, we mean wyvern sewn together from elf skins and tauren with gnome heads for fingers. Sleep well, kiddies!
Nightmare Retardant: The concept and premise is pretty scary, but it's hard to take any of the horror stuff seriously when you remember it's happening to a guy wearing Exciting Underwear on his head.