Seems like this is even more reason to set a good example and follow the style guide.

Twisted has had its own style guide for decades: https://docs.twisted.org/en/stable/development/coding-standa...

(Earliest mention I could find for camelCase methods was 25 years ago: https://github.com/twisted/twisted/blob/d7c19cd40d07c8c37f85... )

Maybe, but the position to not listen to him at all because he doesn't do that is still a much worse look in my book.