The real question is, do you even need to fix it? Does it matter?

The reason those things matter in a traditional project is because a person needs to be able to read and understand the code.

If you're vibe coding, that's no longer true. So maybe it doesn't matter. Maybe the things we used to consider maintenance headaches are irrelevant.

The reason those things matter in a traditional project is because the previous developers fucked up, and the product is now crashing and leaking money and clients like a sinking Titanic.