Jeez it's just data! Use a standard format for serialization and then use programs to format it for reading & everyone gets to read it the way they like it
We've conflated how the code is stored with how it looks. We need to separate these. That's one of the problems with equating code with text: they're different things. Code is data (or objects), text is a way to represent code.
It's not just variable casing; it's any situation where one coding style distinguishes two things which look the same in another coding style. And I think there's a lot of such cases.