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 116.
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.)
You do not need to rot13 anything about HP:MoR or the original Harry Potter series unless you are posting insider information from Eliezer Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).
If there is evidence for X in MOR and/or canon then it’s fine to post about X without rot13, even if you also have heard privately from Eliezer that X is true. But you should not post that “Eliezer said X is true” unless you use rot13.
I guess the only other evidence we have is that the Map, using the wards, would (implicitly) alternate between showing him as QQ and TR depending on whether QQ was being actively possessed, but as far as we know reported relatively consistently on the presence of the Defense Professor, such that it was a surprise to Dumbledore that the wards reported him being the troll. We do know that the wards are able to remain aware of identity even through transfiguration, as shown with both the troll and the unicorn.
It seems like that's about as consistent with the hypothesis "the wards counted QQ's body, QQ's suppressed consciousness, TR's consciousness, and the troll as the Defense Professor" as it is with "the wards just counted QQ's body and the troll as the Defense Professor". It comes down to whether it's more likely that the wards use the simpler strategy of tracking bodies (as Velorien said) since there would be little reason to track spirits/consciousnesses, or that they target your magical "self" as well as the Map seems to do, possibly based on some fundamental aspect of magical self-ness.
Of course, all this is even assuming the wards track the deaths of professors. It seems like the sort of thing you'd want wards to do, but I can't think of anywhere that that's been confirmed. We do know that the wards didn't report that the Defense Professor died after the troll died, so if it does keep track of the deaths of professors, it doesn't count as death when some living portion of "the Defense Professor" is still alive.