Let's have a specific example. The Linux kernel. Technically, it's GPLv2, but in practice the copyright holders don't bother to enforce the copyright license. L

Let's have a specific example. The Linux kernel. Technically, it's GPLv2, but in practice the copyright holders don't bother to enforce the copyright license. Linus Torvalds is the acme of "pragmatic" open source. What right is missing: The ability to compile a new kernel for an embedded device. Qualcomm, Marvell, Broadcom, ARM, NVIDIA, and many others. They provide binary device drivers that work only with specific versions of the Linux kernel. Consequently, my home router has more computing power than my desktop 20 years ago, but my desktop was free to run any software and my router is just a router. Also, Android devices almost never update, for the same reason.