OSI and FSF definitions of open source / free software are essentially identical. Copyleft is a different thing of course that has a more philosophical angle, b

OSI and FSF definitions of open source / free software are essentially identical. Copyleft is a different thing of course that has a more philosophical angle, but it is not the only recognized free/libre software. Importantly there is no disagreement that open source / free software should have no restrictions on use, whether "ethical" or against "leeching".