User blog comment:Superplankofdeath/do you believe in any pasta monsters/entities?/@comment-6195799-20131217190418

Smile.jpg is loosely based off of true events. Some old lady actually claimed to be suffering seizures from a picture of her dog she took...but she did it to herself. She had self-induced seizures that happened due to her severe schizophrenia. Frankly I'm surprised this story is only well known in the creepypasta community, it's a fascinating story.

Slenderman, minus the tentacles, could easily exist in real life, but I doubt the actual creature is based off of somemthing real.

And then there's creepypastas that are based off of actual historical events, i.e. third reich.