It has been suggested the name “Stan” is a portmanteau of the words “stalker” and “fan”, though it is unknown if the name was chosen with that intention. The term “stan” has since become an internet slang term for an extremely obsessed fan of something or someone and is derived from the song’s title.
It was actually a reference to Eminem’s song “Stan” about an insane fan who murders his family or something.
Might be both!