Ian is right. People who redistribute unmodified GPL code while trying to take all the credit or make money off it are stupid and will ultimately fail. Keep on doing what you do. Sell your themes. Make a living. Stop defending yourselves. Don't feel guilty about making money from things you've worked your whole lives for. It's not only your livelihood, it's something you love to do, and in order to keep doing it, you have to be able to pay the bills and feed your family (or your giant puppy, Adii). Going GPL with all my themes is the best thing I ever did for myself in the WordPress community.