It doesn’t need blockchain. I mean if Facebook had just provided ubiquitous apis that people could use, that would be fine and public enough. The key is that t

It doesn’t need blockchain. I mean if Facebook had just provided ubiquitous apis that people could use, that would be fine and public enough. The key is that there’s some public store of identities, and some level of social graph or complaints that lets you know if it’s a real person or not. I think it’s better if it’s not blockchain and tied to some natural identity that people use- like Facebook- so there’s a virtuous incentive to keep it active. A blockchain wouldn’t really be self-sustaining as no one really uses identity as part of random stuff and it would need some way to pay for itself.