Your whole argument seems to be "if someone might potentially get spoiled, then by golly everyone should be".
We realize the rule can't prevent all spoilage. But it can reduce it, and (it being simple and specific) it's extremely easy to follow for anyone who is a non-jerk.
I don't think the rule right now prevents any spoilage. It is implausible that anyone learns anything from hearing "Eliezer said X" that they don't already have (including the inevitable conclusion that Eliezer must have, in fact, said X) from seeing everyone else treat X as unquestioned fact. The rule should, if anything, be expanded to require people to either rot13 those parts of these posts, go through the motions of treating it as a hypothesis, and at the very least avoid casually tossing off allusions to X when it's not central to what they...
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 84. The previous thread has passed 500 comments. Comment in the 14th thread until you read chapter 84.
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.
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: