There was a really great article or blog post published in the last few months about the author's very personal experience whose gist was "People complain that I sound/write like an LLM, but it's actually the inverse because I grew up in X where people are taught formal English to sound educated/western, and those areas are now heavily used for LLM training."

I wish I could find it again, if someone else knows the link please post it!

I'm Kenyan. I don't write like ChatGPT, ChatGPT writes like me

https://news.ycombinator.com/item?id=46273466