Hah, I used to ask this all the time when I interviewed folks. Although I worded it as "most proud of", rather than significant. The best part about it is that

Hah, I used to ask this all the time when I interviewed folks. Although I worded it as "most proud of", rather than significant. The best part about it is that it cuts so deeply. It gets to whether or not people are capable of getting things done. And it gets down to what a person thinks is important. It's amazing how common it is for devs to not care about the right things, and how easy it is for others not to notice such misaligned priorities.