I wrote down a handful as I was doing this, but not all of them. There were a couple about navigation (where rather than say "well, I don't know where I am, I'll just trust the group" I figured out how I was confused about different positions of landmarks). I avoided overbaking my cookies when the recipe had the wrong time written down. Analytics for a site I run pointed to a recent change causing problems for some people, and I saw the (slight) pattern right away but ignored it until it got caught on my confusion hook. It's also a nice hook for asking questions in casual conversations. People are happy to explain why they like author X but not the superficially similar author Y I've heard them complain about before, for example.