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Check the Review stats for Stack Overflow. Low quality posts is effectively empty, after previously having thousands and thousands of items. The suggested edits queue is kept low, after previously remaining near-stuck at several hundred. But the close votes queue count is still sky high with no sign of shrinking.
An innate challenge of the close vote queue is it requires more votes; 5 votes to close (4 once it's in the queue) or 5? "do not close" votes to remove the post from the queue and start close-vote aging. More reviews are needed per item to clear it from the view; only 2 votes on suggested edits (or three with a tie-breaker) and (I think) just a couple looks good votes on a Low Quality post remove it from the queue (or three delete votes, or 6 recommend deletion votes).
So what can be done to efficiently and effectively (accurately) process these posts? Is anything slowing you down/keeping you out of the close vote queue? How can this process be improved?