I am spending lots of time these days reading cycles code, and I think, the learning curve is a bit steeper than it could be. I caught myself adding consts, and modifying class declarations by moving data members to private to figure out if they are modified from the outside. So I think const-correct code, and more private fields in classes would help code readability by reducing the mental load on the reader.
Of course nobody wants to rewrite existing code this way. But would patches be accepted that deviate from the given file’s coding style in this regard?