Implied in Chapter 49, Prior Information, when Harry and Quirrell are discussing Slytherin's monster:
"Rule Twelve," Professor Quirrell said quietly. "Never leave the source of your power lying around where someone else can find it."
I think that's fully compatible with either possibility. If Voldemort studied there, then he would have reason to destroy it; to not "leave the source of his power lying around". But if, on the other hand, he didn't study there (because he was refused), then he would again have a reason to not leave a source of power lying around. (If I can't have it, no one can.)
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: