Realistically, what justification is there any more for working on somebody else's machine, being force to use their config? Ok, if your machine explodes and you need their's for a bit fine. But in the long run, the amount of times where you need to actually edit some code by typing on another person's machine should be vanishingly small.

I'm all for standards when it comes to collaborating on code. But when it comes to text editors, vim configs, even using emacs (get out your crosses, holy water and sliver bullets), it shouldn't really matter from my perspective.