There are 2 factors that would keep you from switching styles: inertia, and symmetry. The benefit from keeping the code looking good usually outweighs the gratification of "going on your own". And frankly if you 're changing coding style in your contribution you look like a prick. The OP's point is valid: it's not popularity that leads to standardization it's because of the initial standardization that it is later adopted.

Case in point: i don't know any major project that does not follow the style conventions of the framework it's built upon.