Over and over again, the undeniable truth is READABILITY is the most important thing in your code. And formatting is the most important aspect of it to make it happen. Without formatting your code is spaghetti, drunk, full of smelly rubbish, violent bunch of uneducated dragons… You name it. Whereas the formatting makes it a sleeping beauty. Whenever whoever sees it, feels the love.
As the codebase grows and becomes a giant, it is important that it learns how to behave. Size doesn’t matter. If it is formatted correctly, it will be a pleasure working with it, hate otherwise.