In India for example the people I have worked with follow, speak and spell the American English way.
The people I work with, and everyone I speak to, in India, uses Indian English. It's definitely neither British nor American in grammar, syntax, vocabulary (obviously), or spelling. Nor in pragmatics come to that. However, most of the spelling used in official sources (government publications etc) is more British than American.
As for grammar that grates, but I nevertheless find increasingly acceptable, a new newspaper is being advertised with the slogan "Less words, more news".
In the context of cycling forums it makes me twinge - but not cringe - to see brake/break and pedal/peddle confused, even though the meaning is (so far at least) always clear.