Managing granular trust in a trustless network

Any thoughts on how to allow vouching for data and/or designating trust? Here’s an example of a protocol that is claimed to allow a third party to vouch for data you provide without compromising your privacy…

What would an equivalent look like on SAFENetwork, or would it even make sense?

A concept I have difficulty grasping is how you maintain control of your data on the SAFENetwork. Every interaction with other individuals/entities leaks details about you. And once you disclose a piece of info, it can’t be undisclosed.