A good chunk of published ~original~ fiction is, by and large, fanfic. It's historical fic about people who really existed, it's rewritings of literary classics or myths, sometimes it's just plain AU fanfic (like those Jane Austen horror AUs and stuff like that), but apparently those people making money with somebody else's work have a right to profit from that? So what's the "moral" difference between a published fanfic writer and a non-published one?