> What if you have two people with different ideas of how to name a certain variable and they just flip the name back and forth every release?

Fire both. There is no amount of skill and productivity that can justify that amount of pettiness.

Typically in this system you encode obligations - e.g. "eieio should review, or at least be aware of, all changes made to this library." I think that means you're unlikely in practice to have a problem like that, which (unless the team is not functioning well) requires two people who care deeply about the variable name and don't know that someone else is changing it.

I think it's a good idea to have a style guide of sorts that you can point to when people sweat the small stuff.

Apply rule 8 of Go