[kazinator]

When I put the BSD license on something, I'm not condoning activity of hiring people away from working on the free version with non-competes that prevent them from contributing to the original. That's not in the scope of the license.

I think the situation could easily exist with a GPL-ed project. It seems possible to hire someone to extend the fork of some GPL-ed code base in specific ways, and use non-compete clauses to disallow any other activity with regard to that fork, or any other.

On paper, you might think that the GPL would hamper such at hing; after all, you have to release the source code. But in practice, things fall through the cracks. Someone with a fork of some GPLed code has certain customers. Those customers get access to the source code, but don't necessarily make it public. If you have key developers bound up with non-competes, and only they understand some code that only certain customers have, ... see the picture?