I agree with this in principle, but where do you draw the line between language features (good) and obscure tricks (bad)? Is your team really writing only ANSI

I agree with this in principle, but where do you draw the line between language features (good) and obscure tricks (bad)? Is your team really writing only ANSI C89 from the K&R 2nd edition book and ignoring the last ~35 years of language improvements?