I don't see any real way of preventing one person from opening ten accounts if they have ten computers and are quick at jumping from one computer to another.

What if they have two computers? Ten computers?

Apart from that is still the previous issue, unrelated to digital identity, of your anonymous team controlling a centralized coin.

Your video uses that phrase very explicitly "the future of digital identity", but it will be difficult to establish credibility in that area based on an 'invitation based' system or whatever you call it unless you use a decentralized proving system for the online identities, or at least something that has credibility outside your closed network.

There was a special bot in telegram that tracked the state of the node ,but unfortunately I don't remember its name, ask in the telegram group, there should be a hint