This is the goal we had in mind when designing coderbits, we realized there are a lot of employers who are/should be looking at real metrics for employee quality like source code quality, knowledge, etc - the simplified idea is that your work should speak for itself. So your stack overflow score and your github repos are just a part of who you are as a developer, and although two fantastic sources of information, not a complete profile or portfolio. Our direct competition is the traditional resume.
Thanks for the feedback, nice to hear.