> You don't need to be GPL to be open: You can MIT/BSD/Apache and still volunteer to not give out binary blobs That's fine but it's only one level deep. What a

> You don't need to be GPL to be open: You can MIT/BSD/Apache and still volunteer to not give out binary blobs That's fine but it's only one level deep. What about the people that download your source and accept the terms of your license? They are totally free to make binary blobs and refuse to give source to their downloaders or their changes back to you. The GPL directly addresses that and keeps the code free, no matter who gets it from who. It's really the only way to guarantee software freedom.