This has come up in forms many times. (See sidebar.) A simple observation is that this community has very few downvoted questions, and very very few downvoted questions that are not closed. It's not even clear why we have a downvote button on questions.
But normally it would be so
- five people can express their dislike of a question but not block it from attention entirely, and
- poor questions have a chance of being salvaged.
We're at this status quo where if a question gets popular it gradually accumulates closes as it climbs to 100 upvotes. Seriously people, when a question is net +300 between question and its answers, it's probably a good question. The right thing to do there is use the downvote. Not circumvent the question's popularity and cast one of the five mega-downvotes needed to close it.