[inertiatic]

Well, this makes sense somewhat. Files will be edited incrementally to the point that nothing remains from the original. If you follow your strategy, the original style remains there until a large rewrite. If you make a point to always follow the official style, then at some point you'll automagically have a consistent codebase.

[loeg]

I disagree that incrementally converting style is helpful. It's best to be consistent in a given file or module. Convert wholesale if so desired.

[mhotchen]

I think it depends on your environment. I've been in situations where code styles have progressed and changed over the years, faster than the file does, so you end up with a hodgepodge of different styles.