Harry Potter: The Last Battle

I've had this article (linked in this post's title) bookmarked for awhile. I believe I first found it through the Vancouver International Writers Festival Book News newsletter I receive through e-mail every month or so (I think? I don't keep track). It seems that Harry Potter's creator, JK Rowling, can't quite decide what she thinks of fan fiction, and other fan activities. The article is about the Harry Potter Lexicon. The is an attempt to keep track of information pertaining to the Harry Potter books and movies. Apparently everyone's been using it, from fans and students reading the books in class to Warner Brothers (they made the HP movies) and Rowling herself. However, trouble started brewing after Steve Vander Ark, who started the site, started working on getting the Lexicon published as a book. I won't summarize the whole debate, as that would only be reiterating the article, which you can check out for yourselves.
Ms Rowling seems to be a bit possessive. She likes fans to engage with her work, but only so much, in a certain way. Only enough to get them hooked on the franchise (oh, I'm sorry, that was judgmental and jaded. Well, such is life.). I can see that she might be upset if she were truly working on her own lexicon, as she claims, and she is therefor afraid that this fan lexicon will infringe on her upcoming work. However, the argument seems to be, from what this article says, that the lexicon is only "reorganizing" Rowling's work, and that it is therefor not original, and is therefor a copyright infringement and should not be published. I fail to see how Rowling could allow and even use and endorse the website but now turn around and claim that's it's a copyright infringement yada yada in print form. Hi, JK? You can't have your cake and eat it too. Same goes for lexicons.