So using someone else's work without paying them is not stealing? Please explain, because I am a developer. If you take my code or my end product (which are not open sourced) and then use, but do not remunerate me for my efforts, how are you not stealing my time and potential profits you would otherwise have had to provide to use the product? The laws of (most) lands say that if I choose to release my creation in a closed way and require payment to acquire, then subverting that is indeed theft. If I wanted someone to have my products for free, I would have made them that way to begin with.