Ten Years After
Los Angeles, for you foreigners, has grades clearly posted in all restaurants so you can see how they're rated by health inspectors. We've had this system for ten years.
"A" means passed with flying colors, "B" means a minor problem or two, "C" means more problems. (At least that's how I see it.) Lower than that and they shut you down, presumably, since I've never seen a "D."
Most of my friends would never eat anywhere that posts a "B." They don't even like walking by a "C." Surveys show this attitude is common. My attitude is who cares. As long as they close the ones that fail, I don't mind getting lunch from a C student.