On the day he killed Rita Skeeter, she observed Quirrellmort had his hair falling out.
She didn't observe it falling out at that moment. Just that he was balding, as we've known from his first appearance and description.
This could just be natural - some people go bald very early - but probably has some significance. The bald spot is located, presumably, where the canon Quirrelmort had Voldemort's face hidden under a turban. This may just be a reference to that fact, with the intended explanation being that smart!Quirrelmort wouldn't make a stupid mistake like that, but there is still some mark of possession there.
Harry has noticed Quirrell looking visibly older.
That was after the Azkaban affair, during which Quirrel was hurt by the magic-clash, by nearness to Dementors, and by total magical exhaustion. Maybe it was so bad that it literally "took years off his life", maybe because Voldemort doesn't care to maintain the Quirrel body in the best possible order if he can squeeze out more power. Which supports your theory, but is not a case of "he has little time remaining in this body".
The curse on the Defense against the Dark Arts position demands a terrible conclusion to his year - or at least the appearance of one.
The curse placed by Voldemort, as revenge for not being made the Defense Professor, surely wouldn't operate against Voldemort when he finally did get the position. That would be far too stupid of him.
Disagree. Breaking the pattern after this many decades right when some creepy dude who openly calls himself evil and encourages children to be Dark Lords gets the job seems like it might as well be hanging a neon sign over your head saying "I'm the Big Bad!".
The new thread, discussion 13, is here.
This is a new thread to discuss Eliezer Yudkowsky's Harry Potter and the Methods of Rationality and anything related to it. With three chapters recently the previous thread has very quickly reached 1000 comments. The latest chapter as of 25th March 2012 is Ch 80.
There is now 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.)
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system. Also: one, two, three, four, five, six, seven, eight, nine, ten, eleven.
As a reminder, it's often useful to start your comment by indicating which chapter you are commenting on.
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: