This is one of my first side projects, and I created it because I’ve always been interested in opinion-based questions on HN (i.e. Ask HN: What is your favorite internet rabbit hole?). I know there are already several sites where you can ask opinionated questions (quota, slant, hn), but I was looking for something that’s uncluttered and straightforward. That’s why Diffur questions are simple lists. Anyone can vote and rankings are based on vote count.