I agree, and it's one of the reasons why novice-to-intermediate programmers should try to pitch in to a project, even for something very minor. I remember making a pull request to a Ruby project and getting rejected and being told to fix all the rubocop errors, which made me aware of the existence of tools for auto-style-detection/linting, and of best practices in style that greatly improved my programming experience.

That kind of practical thing is not well-covered in tutorials and self-learning curriculums.