What do you do when faced with a vague Quora question, not giving details?

Sometimes, I ask for clarification in comments. Much more rarely, I’ll answer after the clarification. (Questions aren’t the asker’s, they’re the community’s. They aren’t mine either.)

Sometimes—more often than some, possibly: I answer anyway. On occasional, I even answer a question related to the question answered.

Hey, ask a broad question, get all sorts of answers.