Seen this posted here years ago. Now as then, my gut feeling is that anyone doing serious work in C would never use something like this-- I feel like the fine grained low level control is exactly the reason they chose C in the first place, and they're not looking to escape from it or they would just choose a different language.
The biggest advantage for me in using C is that the syntax never changes.
When I go look at a C code, I don't have to look up some annotation or new syntax that got introduced behind some abstraction that gets compiled in automatically after the library is pulled from the internet by whatever build system the project uses.