IANAL either, but I still think he'd be free to use his original code in a commercial product. By releasing under GPL, you give others a limited license to redi

IANAL either, but I still think he'd be free to use his original code in a commercial product. By releasing under GPL, you give others a limited license to redistribute and modify the software subject to some conditions, but you keep all your rights, and you are free to distribute proprietary versions of the code. See https://www.gnu.org/licenses/gpl-faq.html#ReleaseUnderGPLAndNF https://www.gnu.org/licenses/gpl-faq.html#ReleaseUnderGPLAnd...