I think thats a bit unfair....as somone else said this is an adult story with adult themescobra_ky said:TL;DR version: as a teenager, Larsson stood and watched as three of his friend raped a girl named Lisbeth. He did nothing to stop them. Lisbeth never forgave him and he was haunted by guilt for the rest of his life.
imo, the fictional character Lisbeth Salander was Larsson's attempt to absolve himself for his inaction, by creating a fictional heroine who can avenge her own rape, and therefore didn't need Larsson's help.
so it's not quite a masturbatory fantasy, but it's still pretty gross and self-indulgent.
they say "wrtie what you know" and that is more or less what Larson did (the story does surprise me in a way) I also think its a bit unfair to to call it "gross and self indulgent" he was a dumb kid at the time and I guess if this was his way of trying to make up for something he never really could then...