Writing is a struggle against silence. ~Carlos Fuentes

OK, I haven't looked into what Steve Vander Ark's motivation for publishing is, but I do think JKR has over-reacted. Seing as she admitted to using the Lexicon as a reference when she was writing the HP books away from home, I really think the Lexicon should be entitled to earn something from the series. Running that site can't have been cheap. Many other unofficial HP reference books have been published, but it's only since Jo has announced her own encyclopaedia that the Lexicon have hit so much trouble. I think how they've been treated is unfair.