The GPL licence, which is the foundation of WordPress and all plugins in the WordPress repository, is a great license, no doubt. It has permitted WordPress to become what it is today, and have such a wonderful community form around it.
I’m lately seeing a small surge in the number of people who are taking advantage of the GPL in what many consider an unethical way. I’m talking about the WordPress plugin stores that are cropping up and selling plugins developed by other people.
