Pretty much all first-year student characters of HPMoR with significant roles existed in canon, at least as names (most of their personalities were not detailed in canon) -- that most definitely includes the entirety of SPHEW, and other important-to-HPMoR figures like Blaise Zabini, and even less important figures like Kevin Entwhistle.
I was just wondering whether the specific making of Greengrass into a "Noble and Most Ancient House" was decided by Eliezer because JKR married off her Draco to a Greengrass family member. Or if it was just a coincidence.
edited to add: TIL I learned what TIL means.
The "I learned" is redundant, unless you mean that you learned that you just learned what TIL means, in which case you could have prefaced it with a 'that'.
I kid, I kid.
The next discussion thread is here.
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 85. The previous thread has long passed 500 comments. Comment in the 15th thread until you read chapter 85.
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: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
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: