That's a great idea.
I've been thinking about how to avoid having AI-isms creep into my own voice, because I see that way too much in my tech-world friends. It's natural enough: if you spend a lot of time talking to somebody, you usually end up mirroring some of their speech patterns.
One idea I had was to start doing my Claude sessions in German. (That happens to be my strongest second language, no other reason.) Thus any Claude-isms I pick up will presumably not wander into my English, which is what I use for most communications.
This would have the added benefits of getting some much-needed German typing practice, and preventing me from ever lazily copy-pasting AI text into an email or a README.
+1 on this being a great idea. I also need to learn how to write in German (I can speak at B2 and read C1, but I find writing difficult as I've never bothered tbh). The added benefit of avoiding Claudisms is interesting. I think I'll join you on this.