Given that https://www.crunchbase.com/organization/bluesky-514d/company_financials https://www.crunchbase.com/organization/bluesky-514d/company... shows him as

Given that https://www.crunchbase.com/organization/bluesky-514d/company_financials https://www.crunchbase.com/organization/bluesky-514d/company... shows him as the only investor, it's reasonable to assume he's by far the controlling (if not only) shareholder. I'm not a lawyer, but it's reasonable IMHO to think that unless/until Bluesky gets additional institutional capital that would frown on this, it could effectively name Jack as a "licensee" or "assign" - the words in the policy - at any time without needing to alert the public, and give him full IP rights to user data.