> C23 finally gets rid of _Who _The _Hell _Thinks _Users _Like _This-style _Keywords.

I always took those to mean "we're sure a bunch of you are already using the keyword we wanted to use as typedef in your codebase, so here's something that's in the standard's namespace, and you can typedef it to something sane for your codebase".

Indeed. And those typedefs were even provided by including stdbool.h

C23 broke a lot of code by making this proper lower case keywords, we probably should have waited longer.