I did say jokingly it was _my_ opinion. If you need some reasons:
*. You can still create abstractions in C as in _most_ languages.
*. C is a simple, tiny language that's quick to learn and use.
*. 5 nested loops? Someone did something wrong. Still, you can follow bad C code easier than bad C++ code.
*. I like doing things by hand, I'm a control freak.
Why C is still so widely used? Probably:
*. Quick portability.
*. It's easy to write a C compiler for a new arch (this one's deprecated somewhat).
*. Not relying on, say containers, makes more transparent code which guards against many bugs and security holes.
*. Probably some of the reasons I already listed for being a fanboy.
But each to their own. I may be crazy, my experience shapes my opinions and I'm the sum of that, as are you.