Can anyone name a single individual whose been sued for violating the GPL?
It's not even used against corporations and has been a complete failure
outside of the moral realm.
It is used. VMware is the latest big example:
https://sfconservancy.org/news/2015/mar/05/vmware-lawsuit/
Those who would release free software would do so with or without copy"right"
and the biggest advocates of enforcing copy"left" and in fact the only ones
actually doing it are in agreement with this view point.
Without any additional provision, the simple end of copyright for software
would mean the source code of proprietary software will never be released
(public domain is negatively defined), what does not make users more free,
and this proprietary software would get an edge because it could then reuse
software that is currently under the GPL (or any other copylefted license).
Short of RMS getting involved in enforcing copyleft there simply isn't
anybody doing it who believes it is working in any real effective manor.
What about the Software Freedom Conservancy?
https://sfconservancy.org/copyleft-compliance/
