Fact is, a lot of people who are super fans of something don't understand the monetary value of their contributions. Just look at wiki farms - they'll buy out sites for tens of thousands of dollars. Hell, just look at this site, just by contributing here and having discussions, you're creating value to the site owner. Generating pageviews, creating original naturally search optimised content, etc.
Point is, people like that guy probably don't understand what they're worth, and think that being involved in a project is payment enough.