Copyright Assignment Meh

Indeed even has contributors to a GPL or proprietary licensed codebase, as an individual contributor you can offer your contributions under a more liberal license such as BSD and a project should be able to accept them even if they don't require copyright assignment. If your personal politics are such that the terms of the GPL( or proprietary licensing) are too restrictive for you, then you are still free to offer your original work under a more expansive license such as the BSD and a GPL( or proprietary) project can consume those contributions without issue even in situations where they later feel a re-license is necessary. BSD licensed contributions should present no insurmountable problems even in a re-licensing situation.

-jef