You misunderstood on the meta level. My point was that you want to use one feature of C++, you enable C++ to use this feature. Developer B wants to use ten other features. Developers C..Z want to use different features. Every feature by itself makes some sense in its context but in the end you're using so many different C++ features that no single developer knows them all. If you use modern C++ there are some ugly edge cases you have no idea they exist and if you use older C++ styles there is hell waiting for you.

The hard part is to select which features of C++ to use and more importantly which NOT to use and to ENFORCE these rules.