That's great and all, but for those of us that do speak English and are expecting certain grammatical norms, eschewing those norms, regardless of the validity of the reason, makes it significantly harder for us to parse.

The question mark is not a rare piece of punctuation, either. It's used in China. It's used in Japan. It's used in Vietnamese, every Romance language I've ever encountered, and every Germanic language I've ever encountered. I'm not saying I understand all those languages, but I can certainly recognize when someone's asking a question in one because the question mark remains the same.

This is a piss-poor excuse and reeks of the attitude of one who's never encountered a language that doesn't use the Latin Alphabet even in passing. Oh yeah, by the way, it's called the Latin Alphabet, not the English Alphabet.