I would add to that excellent assessment: they gave her exclusive writing credits so the sexy back story would add to the marketability of the movie. It's like knowing the White Stripes once dated but like to say they are brother and sister. Just a quirky selling point. But "Diablo Cody" was a stripper like I was a bike messenger: I did it on and off for a year, because I was bored with my 9 to 5 job and wanted something to write about. It may be sour grapes, but that doesnt make it any less true.