You have the "Slate Star Codex" question under the "privacy" section. You may want to retitle the section to something like "top matter".

I'd like an "apolitical" choice for my political views. Especially here, there's likely a significant slice of the population who choose to not have any politics in the manner of Paul Graham, and thus equally don't identify at all, not even a little bit, with any of the given political options.

"If you were referred here by another blog—" "another" is needless.

Consider asking a "% positive" followup to total karma.

I'm going to ask for 4 options in the mental health section; there should be a separate category for people who weren't diagnosed with depression but believe they have had it.

I'd like more resolution in the extra credit section on politics. Just moving to a 7-scale would be a large improvement.

If the survey occurs near/during a HPMOR update (particularly a large update), your responses to the HPMOR questions will be skewed by people who would've read all of it, and will have read all of it, but aren't quite there yet because it just released.

The semicolon in "Hours of TV" should be a comma (sorry for being all nitpicky, that one just really bugs me.)