You do what you want when you publish software! But if you take the entire class of people that produce derivative works, and count them as "not users" you are

You do what you want when you publish software! But if you take the entire class of people that produce derivative works, and count them as "not users" you are making a set error. Derivative works producers are also users. GPL licensing will not stop me from using your software. It will stop some people. I do not say that I agree with those people and their decisions. I could not have built my career without GPL software, and it does not stop me.