The GPL is what made Linux, unfortunately its also everything that is wrong with the whole movement.
Anyone who complains about M$, IBM, Oracle, et al about licensing or intransigence, but supports the GPL and its fundamentalist apologists like Stallman is basically an analogue to your stereotypical college student activist. Badly misinformed, not enough life (Unix) experience to know what is actually good for humanity, and ignorantly shrill. Meet the new boss, same as the old boss.
In fact the actions of Stallman, etc are threatening to make the future of Linux exactly what many of the propietary Unix vendors said would happen, but instead of it being patent trolls shitting in the pool, its the very people who claim to want Linux to flourish. Power corrupts.