"And there's nothing more tedious and torturous than being trapped inside the world of some author's failed or deficient imagination."
That's true. Sometimes, though, it is not the author's imagination or writing skills that are deficient, but his moral sense.
Good point. It's even more horrifying when both are deficient! Think of the Marquis de Sade.
That can make for a very interesting book, such as Lolita.