Well, I for one am confused much of the time, and whenever I encounter someone who ostensibly isn't, I get nervous. Believing falsehoods isn't just the domain of dark artisans, it comes courtesy of having a brain. My belief that "most of my beliefs must have large error bounds" probably has among my lowest error bounds; I'm surest about being unsure.

I do wonder if convincing oneself of having given up deluding oneself isn't the greatest dark side achievement of all -- after all, how would you know it's not? Maybe you got tricked by your System 0.

But I'm being contrarian. Good post overall. I guess the metric I'd prefer in terms of belief improvement is "number of times I've noticed my confusion and bent myself to accept what I perceive, instead of bending my perceptions to myself". More of an engineering approach, still allowing for a few holy cows that don't get slaughtered (without overly compromising your overall strength as a rationalist).