I have read several mentions of the GPL here. The GPL DOES allow EVERYONE to sell stuff put under GPL, they just force him to tell everybody he sell itz that he has the same Right too. If someone here puts his stuff under GPL, any kind of commercial gain is allowed. The GPL just states that everyone can give copyleft stuff away for free or for money. So the GPL dos not help you at all to protect your work, it just guarantees that your work and any other work which is based on you work, can be given away for free OR for money by EVERYONE. So few people here would use the GPL.

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.