Bookslut sources the item to Mobylives, but seems to accept it as true. Mobylives attributes the story to The Watley Review, and, to be fair, appears to be hedging his (hers? its?) bets on authenticity. The Watley Review says of itself:
The Watley Review is dedicated to the production of articles completely without journalistic merit or factual basis, as this would entail leaving our chairs or actually working. Names, places and events are generally fictitious, except for public figures about which we may have heard something down at the pub. All contents are intended as parody and should be construed as such.The presence in the Harry Potter piece of a quote from S O'Crates of the University of Phaedrus suggests that we are in debatable ground. Either Bookslut has failed to spot the joke, or else Jessa Crispin's irony is too subtle for me. Whichever is the case, this item has alerted me to a new source of satire on the web.