And I also didn’t like the quoted person in the article that said they had to (my words) “dumb down” their technical conversation whenever an American entered the conversation or they wouldn’t understand the terms they were using. That is just arrogance and borderline xenophobism in my opinion. Neither the implication that speaking perfect grammar and knowing more words is almost equivalent to moral superiority.
Anyway, that represents the diversity in non-native speakers perceptions somehow I guess. I enjoyed a lot the insights of the professor from New Delhi — I loved the word prepone - and I think the concern about prejudice over not being “native” or “mother tongue” very valid.
https://www.dictionary.com/browse/prepone
>Indian English
I noticed that the usage of slang, correct grammar is an indication of the position on the social ladder and education.