Good thing George Lucas doesn't feel this way. There are a lot of Star Wars books by other authors. The good ones sell and the bad ones don't.
James Potter and the Hall of Elders' Crossing -- Muggle Version# The continued story posted by an American author. J.K. threw a class a fit about his using her characters.. how dare he? Well until he told her it was just going to be on the Internet and he wasn't going to earn any money off of it. Well then it was suddenly O.K.
See for J.K it's not about the purity of her characters, it's all about the money. Please note J.K. did not "out" Dumbledore until after the books were sold in America. Why? Well it seems we are The Bible Belt" and we might not have purchased her book in droves like we did. We were not given the option because she just assumed we couldn't deal with a gay Dumbledore.
J.K borrowed a great deal from Tolkien, how would she feel if his surviving members said "excuse me but the elves and spider were our characters, go get your own"?
Now she is dangling a 8th book carrot in our face. At first it was a "bite me no way" Now it's a maybe I will.... oh please. She's going to milk Harry Potter for all it's worth.