Update: Discussion has moved on to a new thread.
After 61 chapters of Harry Potter and the Methods of Rationality and 5 discussion threads with over 500 comments each, HPMOR discussion has graduated from the main page and moved into the Less Wrong discussion section (which seems like a more appropriate location). You can post all of your insights, speculation, and, well, discussion about Eliezer Yudkowsky's Harry Potter fanfic here.
Previous threads are available under the harry_potter tag on the main page (or: one, two, three, four, five); this and future threads will be found under the discussion section tag (since there is a separate tag system for the discussion section). See also the author page for (almost) all things HPMOR, and AdeleneDawner's Author's Notes archive for one thing that the author page is missing.
As a reminder, it's useful to indicate at the start of your comment which chapter you are commenting on. Time passes but your comment stays the same.
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:
You do not need to rot13 anything about HP:MoR or the original Harry Potter series unless you are posting insider information from Eliezer Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).
If there is evidence for X in MOR and/or canon then it's fine to post about X without rot13, even if you also have heard privately from Eliezer that X is true. But you should not post that "Eliezer said X is true" unless you use rot13.
I just wanted to note that people take everything you write very seriously and tend to up vote everything. They only go berserk and punish you heavily if you contradict your earlier self from the sequences. Which is funny if you think about it, shouldn't they assume that your.more recent position is the better one?
Anycase, I've thought up of an experiment that might interest you. Try posting all your regular interaction, except the stuff where your represent SingInst or do sort-of-moderator-like stuff, with a sock puppet account for 3 months. I wonder how your experience of LW would change. It would give you some information about how your status influences how people treat you here. Or perhaps you may be better off not knowing...
Of course maybe you've already tried this - if so, can you tell us the results? With graphs if you have them. Mainly I like graphs, but if you don't want to you don't have to.
This is a good idea. I am really in support of the graphs. There are not enough graphs here lately.