@jrg (and anyone interested): So ...I'm not sure how the decision about code of conduct requirements ought to be made. But I could edit
the meta question with a "banner" asking people to vote their opinion. And add CW answers (separate from what's there now) for (1) require candidates to signed CoC 2.0, and (2) reword to allow older versions too, provided that they agree to abide by the corresponding Leadership CoC.