This really varies per site. For example, since StackOverflow is primarily for concrete technical questions, overly subjective discussion questions are liable t

This really varies per site. For example, since StackOverflow is primarily for concrete technical questions, overly subjective discussion questions are liable to get moved or closed; however, if you're interested in something concrete but still broad (e.g. how to use existential types), you're likely to be fine. On programmers, on the other hand, most of the questions involve a good bit of discussion; the majority have several answers. This is because the focus of the site is different. Finally, I think there's a lot of selection bias--you're more likely to remember closed questions, and the sort of questions that get shared on HN are the sort that don't really fit in StackOverflow.