Stan is from an Eminem song about a fan who is overly obsessive. So it started out referring to an insane fan, like Stan in the song, and now it seems to just mean a regular fan.
I wouldn't think saying you stan someone famous would be a compliment to yourself, because in the song Stan kills himself and his pregnant girlfriend because Slim Shady won't answer his fan letters, but hey.
I wouldn't think saying you stan someone famous would be a compliment to yourself, because in the song Stan kills himself and his pregnant girlfriend because Slim Shady won't answer his fan letters, but hey.