I guess a distinction has to be made wrt what kind of sw gets what license. In the forming years of F/OSS, it was mostly re-implementing Unix, compilers, and PO

I guess a distinction has to be made wrt what kind of sw gets what license. In the forming years of F/OSS, it was mostly re-implementing Unix, compilers, and POSIX tools, guided by strong specs and portability requirements. Now with Linux almost the only server OS standing, questionable innovations such as containers, one-of-a-kind software being released as F/OSS, and the abundance of F/OSS directly responsible for the "cloud" (in the sense that selling services and integration is the only area left where to make a buck), the copyleft/non-copyleft taxonomy doesn't seem to work anymore.