Originally Posted by denim

I can't answer that. What I can say is that if I write a program and make it available for sale, and you take and use a copy w/o paying for it, or take and give away copies w/o paying for them, or pay for a copy and give away further copies, that you are making the program available to others w/o my permission and are denying me payment for my effort. This is known as "theft".