GPL

In the time that I around on this forum, I am wondering why does this site allow the GPL license.

Although I think it is a good license, that I have used for some of my projects as well, it is never meant for art.

gnu.org/licenses/gpl-faq.html: "For instance, anyone publishing the book on paper would have to either include machine-readable “source code” of the book along with each printed copy, or provide a written offer to send the “source code” later."

My suggestion is to show only the three CC licenses, and giving an option for viewing more. (Anyway, CC-BY is legally convertable to GPL 3.0)

Anyway, if I understood it wrong, please correct me.