A useful article in The Guardian on the long standing prejudices against fan fiction and its emergence from the dungeons of dubious subculture particularly since the advent of the internet.
From Star Trek to Fifty Shades: how fanfiction went mainstream
Wed 8 Aug 2018
The divide between a fanfiction writer and an original fiction writer can look very arbitrary when looking at authors such as Michael Chabon, who once described his own novel Moonglow as “a Gravity’s Rainbow fanfic”. Or Madeline Miller, whose Orange-prize winning The Song of Achilles detailed the romantic relationship between Achilles and Patroclus, and whose latest novel Circe picks up on the witch who seduces Odysseus in the Odyssey. Miller said she was initially worried when one ex-boyfriend described her work as “Homeric fanfiction” but has since embraced her love of adapting and playing with Greek mythology. The tag could also be applied to classics such as Jean Rhys’s Wide Sargasso Sea, reworkings of Shakespeare by the likes of Margaret Atwood and Edward St Aubyn in the Hogarth series, and a spate of parodies: Pride and Prejudice and Zombies, or Android Karenina.