I foresee this happening too. For me to not worry about this, three things would have to happen: 1. Open source everything, including the parts of the code tha

I foresee this happening too. For me to not worry about this, three things would have to happen: 1. Open source everything, including the parts of the code that are currently premium 2. Switch to a copyleft license like the GPL 3. Start accepting substantial contributions from the community without a CLA Then they'd be legally unable to do that kind of rug pull.