>I've stated above some parts of my views about certain political issues unrelated to the issue of free software—about which of those activities are or aren't unjust. Your views about them might differ, and that's precisely the point. If we accepted programs with usage restrictions as part of a free operating system such as GNU, people would come up with lots of different usage restrictions. There would be programs banned for use in meat processing, programs banned only for pigs, programs banned only for cows, and programs limited to kosher foods. Someone who hates spinach might license a program to allow use for processing any vegetable except spinach, while a Popeye fan's program might allow only use for spinach. There would be music programs allowed only for rap music, and others allowed only for classical music.

>The result would be a system that you could not count on for any purpose. For each task you wish to do, you'd have to check lots of licenses to see which parts of your system are off limits for that task. Not only for the components you explicitly use, but also for the hundreds of components that they link with, invoke, or communicate with.

>How would users respond to that? I think most of them would use proprietary systems. Allowing usage restrictions in free software would mainly push users towards nonfree software. Trying to stop users from doing something through usage restrictions in free software is as ineffective as pushing on an object through a long, straight, soft piece of cooked spaghetti. As one wag put it, this is “someone with a very small hammer seeing every problem as a nail, and not even acknowledging that the nail is far too big for the hammer.”

https://www.gnu.org/philosophy/programs-must-not-limit-freed...