I agree with the first point. Always go for clarity over cleverness.

I somewhat disagree with the second point. Consistency is important. Stick with the same name when possible. But I think mixing camel case and snake case should be avoided. It can make the code less ”greppable” IMO, because now you need to remember which casing was used for each variable.

Kind of agree on the third point. I think flatness should be preferred when possible and when it makes sense. Easier to find the variables with the eyes rather than having to search through nested structures.