[OkayPhysicist]

Leetcode exercises are pretty effective at weeding out incompetents. If they have a false positive rate, that's fine, you've got plenty of applicants. If they weed out some of the best that's also fine, because the number one concern when hiring is to find someone competent enough that they don't become an embarrassment to anyone involved.

Real world business decisions are dramatically less optimized than people imagine they are.