Somehow, I constantly come across lifelong programmers who insist on working for free. They get software for free, give their software away for free, and very often have encompassing philosophies of software freedom (and often freedom of information and data in general). I find it very sad that the idea of mutual support and love of software and art without money changing hands is regularly met with such resistance from people who haven't experienced the joy of being in a community that doesn't constantly look to extract cash from their own.
I know what exploitation is, but it's not the group of programmers working for the good of one another.