Well you are talking about control of the product road map, which isn't really something that the license can do much about. GPL is just as forkable as MIT or

Well you are talking about control of the product road map, which isn't really something that the license can do much about. GPL is just as forkable as MIT or BSD. And as to being "stuck" maintaining code that you don't want to... well, just stop already. Control over the evolution of a protocol isn't easy to bake into a license. It is probably better to look at tools like trademark where you can require passing compliance tests to fly a logo, for instance. Again, be clear about your goals. Controlling the evolution of a protocol forever is different from launching and declaring victory once it takes on a life of its own. Both are legit, but require different tool kits.