Question: The Slender Man (also known as Slenderman) is a fictional supernatural character that originated as a creepypasta Internet meme, an activity, concept, catchphrase or piece of media which spreads, often as mimicry or for humorous purposes, from person to person via the Internet, created by which Something Awful forums user, also known as "Victor Surge"?
Sentence (from "Internet meme"): An Internet meme may also take the form of an image (typically an image macro), hyperlink, video, website, or hashtag.
Relevant evidence: No