I figured I'd find an answer to this on my own but can't. Sorry if this has been asked or answered elsewhere. I'll delete it if so.
When should someone down-vote a question as opposed to close-vote it (assuming they have enough reputation to pick one or the other)? They both seem to indicate poor-quality/irrelevance/vagueness/etc. but have very different mechanics. A down-vote appears much more prominently to all users though enough close-votes obviously has a bigger effect on the question.
Is this similar to this close-vote/flag question in that the features are intended for different reputation levels?