At the end of the day, JK Rowling owns Harry Potter, she made him up, worked incredibly hard for years, it's her right to refuse a fan-made encyclopedia from bring published. I would do the same if I was her, and the Lexicon were plain right stupid to think they could do it in the first place. It's like one of us trying to get our fanfic published - it's not going to happen. I back JK all the way. How many people have already cashed in and made a fortune on her ideas? Hundreds, if not thousands! JK Rowling is not a piggy bank, she probably feels like one though.