I wonder how this is feasible?
This is PayPie's chance to prove themselves. After all they are all about analyzing financial data, preventing fraud, and detecting false, inflated, duplicated invoices and fake reporting. Let them show us how they uphold the rules they have set for their own pre-sale.
There is no KYC right? Then it will be hard i think, but maybe they have found a good method.
Even KYC is no guarantee. A multi-accounter could hire another person as a proxy, similar to a money mule.
To be honest, the one who finds a way to prevent multi-accounts may as well start a complete stand-alone business with that solution. Perhaps even be nominated for a Nobel prize. Because it would requiring solving the paradox of uniqueness and identification in an anonymous network.
If they would use something like Civic for KYC it would be cool and it would also bring attention. Just saying.
I think, that ongoing investigations of US will sooner or latter target also all ICOs without KYC. US stands on "every tradeable token or coin is security"