[_--__--__]

The time cutoff probably matters but maybe not as much as the lack of human finetuning from places like Nigeria with somewhat foreign styles of English. I'm not really sure if there is as much of an 'obvious LLM text style' in other languages, it hasn't seemed that way in my limited attempts to speak to LLMs in languages I'm studying.

[d3m0t3p]

The model is fined tuned for chat behavior. So the style might be due to - Fine tuning - More Stylised text in the corpus, english evolved a lot in the last century.

[paul_h]

Diverged as well as standardized. I did some research into "out of pocket" and how it differs in meaning in UK-English (paying from one's own funds) and American-English (uncontactable) and I recall 1908 being the current thought as to when the divergence happened: 1908 short story by O. Henry titled "Buried Treasure."

[anonymous908213]

There is. I have observed it in both Chinese and Japanese.