FOSDEM: Richard Fontana on copyleft-next

Exactly. And potential users of copyleft-next also benefit when *other* people use that license; you want to encourage widespread adoption, and license clauses not directly addressing copyleft seem counterproductive for that.

I'd really like to see the simplest possible license that provides approximately the same set of essential protections as the GPLv{2,3}; thus, I'd really like to see this license act as a strict subset of those licenses.