The unbreakable vow is basically giving people the death penalty with no way to ask for any kind of exemption due to unforeseen circumstances. It's not something to be used lightly. Also, in Methods of Rationality someone permanently has to lose some magic, which is also something not to be used lightly.
Don't follow. You see "making an actually binding promise" as equivalent to dying?
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 119.
Plans for next chapter release:
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.)