> Also, a new feature I want to use needs only be supported by one C compiler: the one I'm using.

I've always had the impression that C programmers also care about standards compliance, and aren't typically willing to marry their project to a particular compiler.

At least, it's the language community where you see "language lawyers". I'm sure there are "language lawyers" in other language communities, but I've never seen discussions about what causes "undefined behavior" or what's "implementation dependent" or discuss interpretations of particular passages of the standard like I do with the C and C++ communities.