In recent chapters I've been agreeing more with Dumbledore overall than with Harry. Not on everything (Dumbledore probably should do more to prevent bullying), but Harry's general attitude seems pretty foolish. It might work out ok for him - he's got the author on his side and lives in a world with extraordinary quantities of low-hanging fruit. But I'm not sure if he's a good role model for those of us stuck in the real world.
Dumbledore's depiction reminds the confessor in three worlds collide. He mentions that there are very few humans who need help to be more optimistic, and his experience leads him to see all the ways that things can go wrong, so makes him suited for being rational. Similarly with Dumbledore, his experiences have made him highly risk averse, often to good, but it does result in him being unwilling to change things. (As a contrast to the more reckless/innovative Harry).
Update: Discussion has moved on to a new thread.
The hiatus is over with today's publication of chapter 73, and the previous thread is approaching the 500-comment threshold, so let's start a new Harry Potter and the Methods of Rationality discussion thread. This is the place to discuss Eliezer Yudkowsky's Harry Potter fanfic and anything related to it.
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. The fanfiction.net author page is the central location for information about updates and links to HPMOR-related goodies, and AdeleneDawner has kept an archive of Author's Notes.
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: