This stood out to me: > Rewriting your teammate’s code without a discussion is a huge blow to your ability to effectively collaborate on a codebase together.

This stood out to me: > Rewriting your teammate’s code without a discussion is a huge blow to your ability to effectively collaborate on a codebase together. Frankly, that sounds unprofessional. The author sounds like an experienced developer; that approach to refactoring seems arrogant.