Regarding feedback: in 2/3 cases I observed closing votes in less than 2 hours from the original posting. In most cases a questions could be updated to better fit the recomandations. Still, if you close the question before allowing the author to update the question, you will end-up frustrating a user and giving a less than desired overall experience.

I was not questioning the intelligence, only the approaches. Over the last 2-3 years I got lots of close votes or comment complaining about off-topic. This happened only on SF, not on the other sites.