Software is one of the most derivative types of works ever invented. It's arguably based on copying what other people have already created. The modern world would look a lot more primitive if this wasn't the case.

Corporations like Coca-Cola long ago figured out that begging people not to steal your ideas is a waste of time. If you don't want people using your ideas, then don't share them.

Dunno why so many programmers don't get this and seem perpetually butthurt that other programmers figured out the ultimate way for programmers to rip off each other's code.