Re:No More Free Work from Marak: Pay Me or Fork This
by josephcsible on Monday November 09, 2020 @11:34AM
(#25036504)
It allows reselling, yes, but since anyone who buys it could give it away to everyone else for free, it doesn't really happen much.
https://www.gnu.org/philosophy/selling.en.html
(And GNU even encourages it.)
See also about selling exceptions to GPL, like Qt does :
https://www.gnu.org/philosophy/selling-exceptions.html