GMs get asked this question all the time. We give idealized answers, offering the paths to improvement we wish we had followed ourselves. It’s a lie. But I’ve decided that it’s an interesting lie. Here is mine:
In writing Lisa, I broke with a fundamental literary convention: I did very little to hide the identities of the people on whom characters were based, sometimes nothing.
The main reason I decided to publish Lisa myself was that I wanted full aesthetic responsibility. I especially needed to be behind the face of the book. So many books I love are marred by an incongruent picture that somebody else slapped on it. And this experience creates the impression that you have to go past the cover, like some kind of barrier, to get to what the author really wants to say.