And we must remember that Eliezer's CEV depends on the supposition that there is no absolute morality, no basis for calling Dumbledore morally superior to Voldemort, or Gandalf morally superior to Sauron.
Going from "there is no absolute morality" to "there is no basis for calling agent A morally superior to agent B" is a much broader jump than you make it seem here. The first part I agree with; the second part is much less clear to me.
If by "basis" you mean "absolute basis," well, OK, but so what?
What else could you possibly mean other than absolute basis? That's not a rhetorical question; I'd appreciate seeing it spelled out. You can't say "Agent A is morally superior to agent B" in anything but absolute terms. Otherwise, you can only say, "Agent A is morally superior to agent B from my perspective, which is close to agent A; but someone else at a position equally close to agent B might say with equal validity that agent B is morally superior to agent A." And that is a very different statement!
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: