Can I go ahead and call a bias? People who earn less, are less happy, or believe they are less successful than their peers are less likely to fill out this survey.

We tend to use trivial examples to illustrate sunk costs, like deciding whether to go to the movies, or deciding whether to leave a restaurant if the food is bad, but there are important real world situations where these considerations matter. For example, many people are afraid to change careers mid stream because they are afraid that all their education and experience up to that point would be a waste of time. They've already spent thousands of dollars on a degree, or tens of thousands of dollars on a professional degree, and now they have to start over? But isn't that better than being miserable for the rest of your career? You can't get your tuition and your time back, but you can still make yourself happier.

I'm agnostic to the heuristic you propose, but I disagree with applying it to the metric that you use (being pro- or anti-science). Scientific progress might be slowed by respecting genetic privacy rights, but we could say the same of any privacy rights (or, indeed, many other things). Imagine how much faster sociology and psychology could advance if we knew what everybody does in the privacy of their homes. Surely there are considerations more important than the advancement of science.

"How many non-fiction books did you read in the last month? How many fiction books?"

I would rather phrase this: "How many pages have you read in the last month?" I've read zero books, but I've read ~200 pages of journal articles. Others may read hundreds of newspaper pages in a month. Plus, some books are 200 pages long, others are 600 pages long, so it's better to ask directly about pages of text, irrespective of the medium.

"Are you signed up for cryonics? Views on cryonics."

This is a LW / OB bias. Why cryonics as opposed to the many other technoscientific and transhumanist topics out there? Because Eliezer and Robin hyped it up.