Considering there is English grammar authority either, I guess you can never be violating English grammar rules? You are merely in conflict with some of the English dictionaries out there. So even if the scale is different, it's sort of the same.
Imagine if English (Language) teachers took the same stance. A+ everyone, if that's how you say it, you're correct, there is no wrong.
(And then is ESL different? Seems like racism is the effective conclusion!)