This meta-proposal basically recommends all the same foundational principles that the fediverse is built upon, so I'm curious to see if Twitter follows this advice.
In terms of legal business structure, BlueSky should be structured as a non-profit entity and should maintain its open-source commitment. At the outset, we do not think BlueSky, as a base protocol, needs a revenue model.
Twitter doesn't have a profitable business model right now, it will be interesting to see if Twitter is successfully able to pivot to become a for-profit company whose primary product is not-for-profit.
Hopefully some interesting innovations come out of the project, and it's at least a step in the right direction.