A bunch of those are of the form 'you know there are better ways to go about doing that sort of thing' (like 'maybe consider using a std::vector instead of that static array' and 'just make a minimal ctor for initialization, you'll save typing in the long run' and 'when do you need to know the largest value in an enum, and why can't you just toss in a dummy last element, also why aren't you using enum class') if not outright 'jesus, don't put yourself in a position where you'd want to do that' (like the 'iterate over members of a struct' or the type stuff). And I had never heard of those 'fourcc' codes and have no idea why anybody would want them in a language standard.

That said, there are some reasonable points, like '#pragma once' and 'enum-to-string' (extreme disagreeage on the 'string-to-enum' direction tho).