<i>&gt; Plus it seems extra presumptuous to claim some kind of inherent right to profit off derivative works of my software.</i><p>Who&#x27;s claiming that? On the other hand, I&#x27;ve met more than a few pro-FSF people who seem to think it&#x27;s cromulent to claim that I <i>don&#x27;t</i> have the right to profit off my work (which is insane; you can pick whatever license you&#x27;d like, copyleft or not, and so can I).