"I don't actually like the notion of contributing to the community, because that implies a certain amount of altruism(利他主义), ...... I really think it is more like you are not contributing to the community, what you are doing is trying to make a project better for yourself, and the rules of the project end up meaning that as you are making it better for yourself and trying to improve your own situation, you kind of indirectly contribute to the community. But you should always motivated by your needs."