Many of the questions on the site that are closed as off-topic or for other reasons have negative scores. Should I be downvoting questions that I vote to close? To me, I feel like downvoting and voting to close are to be used in different situations (and almost never at the same time).
So should off-topic and other closure-worthy questions be downvoted in addition to voting to close? Does it matter whether the voter has enough rep for closure votes, or if he can only flag?