In 2007, Rowling was widely celebrated for announcing that her character Dumbledore was gay, despite the fact that theres nothing to suggest this in the text itself[note]This one I might not agree with him on. You could conceivably read that into the text. There were hints you could work with. The point really is, though, it's not in the text - and so reader-response theory applies. JKR doesn't care. She thinks she is the text.[note], where she had an opportunity to actually advocate for queer issues; this year, when she told her fans that their personal theories were all incorrect and another character, Sirius Black, was not gay, they were outraged. We grew up with these characters, they insisted, we decide how to read them. JK Rowling is over, they declared, as if she hadnt already been dead since Barthes. (Or longer: theres a reason every testament is final, why God never actively intervenes in the world once His holy book is set down, why the medieval Kabbalists had to invent reader-response theory and the Catholic Church headcanons.) Whats clear is that absolutely nobody involved has ever read a word of Derrida.
There are many definitions of deconstruction, none of them particularly good, but you could do worse than to describe it as a mode of reading that refuses to forget the textuality of the text, the fact that its a series of marks on a material substrate that were written and which can be read, copied, misunderstood, ignored, or destroyed, that before it conjures up a private universe it exists as a shared object in this one. As a sop to her LGBT+ critics, Rowling shortly afterwards revealed that in her books lycanthropy is actually a metaphor for AIDS. Her position on all this is clear: she came up with these stories, she owns them, and long after theyve slipped into the wider discourse they still remain essentially hers, essentially private. On Twitter, her header image was briefly two lines of text reading I know what Dumbledore would do. Deal with it. The true text of Harry Potter is not on the printed page, but between her ears, to be altered whenever she wants; in her Platonist cosmology fictional events have a shining reality that is all their own, which emanates from out her mouth. Shes following the fandom-headcanon model of literary theory, but here hers is the largest, most bloated head, and the only one that counts. Its impossible to read this denial of the text anything other than an abrogation of her rights and duties as an author. Sometimes dedicated fans whip themselves up into such a frenzy over their favourite culture-commodities that they act as if the stories were real, centring themselves in a private world that does not belong to them, and JK Rowling does the exact same thing. As soon as she moves to keep hold of her creation, it gains a terrifying, spectral autonomy. JK Rowling is not the author of the Harry Potter books; she is their biggest fan.