The GPL has held back open source and left the door wide open for Apple and Microsoft to push a locked-down cloud future in which general purpose computing has been or is in the process of being destroyed for 99% of the population.
It's a stupid license that grew out of naive politics, and has done nothing more than made the world suck more; quibbles over pointless GPL licensing minutia are a waste of resources and fail to inspire in me a dramatic response.