It's just another way to beat on newbies; to stroke your own collective egos; to show (false) superiority.

Thanks for the free, long-distance psychoanalysis. It was certainly worth every penny I paid for it.

Do you know how many Perl books and tutorials I've read? (I don't remember any more.)

Every one of them which misspelled "Perl" as "PERL" had serious technical inaccuracies. (Teaching novices to avoid these tutorials is worthwhile.)

I don't interview C programmers, but a good friend does. Everyone who claims a working knowledge of "C/C++" has had serious technical deficiencies.

Yes, language is fluid, and yes, descriptive linguists have a point you don't want to take too far, and yes, lording it over novices who fail to kowtow to some shibboleths of the dominant cultural cult practices is wrong, but at some point the science of computer programming has to distinguish between truth and falsehood, between fact and fiction, and between correctness and superstition.