@cine I failed a high-quality autism test, so confirmed not autistic.

While the GPLv1 isn't really a thing anymore, licensing GPLv2-only and GPLv3-only are still far too common - thus it's important to mention which license you are actually referring to.

It would be great if everyone just licensed GPLv2-or-later or GPLv3-or-later and if that was the case you could just write "GPL", alas so many people hate freedom that they choose to license GPLv2-only and never enforce their license (a proprietary license is ineffective against the GPLv3, as such software instantly gets discarded, but licensing GPLv2-only prevents combination with GPLv3-or-later software, but is is a free license, so people don't discard such).