But then I could ask somebody who wants a second account the sum of UD 7 so that I can certify the sybil. Kind of a certification black market…
However I agree with you that we have to define good parameters from the start. We had an interesting discussion (in French) about this here: Validation identitaire - #43 by Shinra
I think @cgeek idea of having a public page analysing the blockchain in specific ways is also interesting. However I don’t see how we could ban cheaters other than refusing to certify them (but they could then get certified by other less scrupulous individuals)?
Other banning techniques introduce again the problem of centralisation. If we don’t want anybody “controlling” the people entering the system, we cannot have anybody controlling the exit either. Because then we would again have a currency controlled by individuals who have the power to ban others.
I think there could be some sort of computer-calculated “risk of cheating indicator” that people can be aware of when making transactions with others. However power is now in the hands of the algorithm… Because sellers could now refuse to sell to individuals having been identified by the algorithm as “high risk”.
What do you think?