Altruism can be part of the reasons for writing new open source code too. For example in a specific case the set of reasons can be that it's fun, it's a learnin

Altruism can be part of the reasons for writing new open source code too. For example in a specific case the set of reasons can be that it's fun, it's a learning experience, it markets the coder's skills, _and_ it provides free value to others. It doesn't have to be the only reason, and I'm not necessarily talking about "pure" altruism here (if there is such a thing), but rather about a general concern for the welfare of others.