He's an addict, he gets his kicks this way as well as some income. There are people who pretty much rewrite other people's books and sell them on Amazon. They don't do it for the money, they do it because the curious form of status they believe it brings makes them feel good, or at least makes them feel their version of good. This guy's gonna keep on going, he's like gambler or a stalker, the normal rules that apply to people like us just don't apply to his psyche, and there's enough people in hyperspace who don't know his background or who don't care to keep making him feel good