[microtonal]

That's a different kind of error, namely an error in phoneme to grapheme conversion. So, if you want nitpick, do it right ;).

At any rate, language changes. Both meanings of words, what is considered syntactically valid (see, 'because ADVERB'), and how phonemes are realized. Of course, that does not mean that one shouldn't point out errors (they're vs. their vs. there). However, sometimes errors become common usage.