Not at all, like I've said before dark stuff is a way we face our own fears and demons.
I've enjoyed a little of it myself, one gulity pleasure of mine was Cheerliee's Garden for it's psychological horror.
If you want to wash Cupcakes away read Silent Ponyville, it will give you so much respect, love, and sympathy for Pinkie not even the worst gore fic will be able to make you think bad of her.