Microsoft declared C dead and wanted that everybody transitions to C++. Luckily this changed a bit and MSVC now supports newer standards. Also there are now other alternatives on Windows. So I do not think there is a good reason to put everything on standstill anymore. C needs to evolve and old code must be maintained. For me, this this means that code should be transitioned to newer standards. In no other industry would it be acceptable to ignore current industry standards. Now, I do understand that some projects do not want to use newer features for portability reasons. But this does not mean that they couldn't be compatible with a newer ISO C modes as well. Being compliant with C 17 does not necessarily mean one has to use new features.
