I think the reason this looks like a parody is that it is not an original idea. Eliezer took it from here (http://lesswrong.com/lw/7jd/harry_potter_and_the_methods_of_rationality/4wqy), presumably because he thought it was funny.
Still, one could think there is not a huge difference between "heart's desire" and "coherent extrapolated volition" anyway, so it is not that unreasonable.
We don't know that he took it from there. Note that his comment saying "Great idea!" was posted after the chapter in which he did it so it's clearly joking to some extent. For all we know, Eliezer may have had that plan long before pedanterrific said anything.
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 109.
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: