Collaborating effectively. Following best practices. Reviewing code, sending pull requests, increasing the test coverage... Be careful, don't break the build :)
Crushing candy does not give points. Providing feedback on a team mate's code does. Writing tests does. Our points and badges are an indicator that you are probably on the right track.
It is. The main competition is against our own team in the past.
We want to keep an eye on the progress and make sure those
deltas are positive. And, yeah, being the individual leader of the
sprint always feels good, too ;)