I've seen this expressed as a concern even from one of my colleagues. My retort was:

"English is not my native language and LLMs taught me quite a few very useful formalisms that do land well for people and they change their attitude towards you to be more respectful afterwards. It also showed me how to frame and reframe certain arguments. I agree sounding like an LLM is kind of sad but I am getting a lot of educational value -- and with time I'll sneak my own voice back in these newly learned idioms and ways to talk."

You're absolutely right!

So human language will improve and become more precise? I'm all for it, especially if we get more emojis in speech! Why is that sadly? Humans will learn to imitate their more intelligent betters.

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There was already evidence last year[1] that pointed to ChatGPT-specific words like "meticulous," "delve," etc becoming more frequently used than they were previously. The linked study used audio of academic talks and podcasts to determine this.

[1] https://arxiv.org/abs/2409.01754