Indeed. I thought that was a given.

The problem is when different people edit the same files using varying setups - some using tabs, some using spaces, plus varying tab interpretations (4, 3, 8, etc ...). The end result is an indentation nightmare that looks as if a monkey has been dancing on your keyboard.

Because maintainable code is all about transparency and simplicity, not about showing off your brilliant command of the more arcane aspects of a language.