Fixing easy cases makes the list shorter, so enables more focus on harder cases.

And it also signals that you actually do want to improve, just a little bit of boy scout rule goes a long way.

The issue is that the list is infinite (anything not specified is UB), so actually removing any finite amount of UB from the list won't make it shorter.

(only slightly tongue-in-cheek, I do believe that removing silly things is worthwhile).