While I certainly understand your goal here, wouldn't you have a better moderation regime if you hired people to do this as their jobs? Metafilter is my example of a hired-mods-done-right setup. I fear that a 1000 karma policing setup will make this place more like slashdot. Not that I'm taking a strong stance against slashdot, but is that the culture we want from this website? Just my two cents.