Let's flip that around and replace "debugging" with "coding" for a moment. Imagine you have a new junior developer on the team, and their deliverables seem okay

Let's flip that around and replace "debugging" with "coding" for a moment. Imagine you have a new junior developer on the team, and their deliverables seem okay. Then one evening you discover they've been staying late manually reformatting and reindenting all of their code using notepad before each commit. They explain this is because it's what they know will work reliably, and those other tools gave odd errors on their computer or had too many confusing options or needed some kind of bridge or dependency. I might be impressed with their work ethic, but I can't just not-care about the problem that has risen into view. (Unless I'm literally counting the days until I move elsewhere.)