I really hope that PROPY project will get back on it's feet soon. I was interested in it for a long time, and I think that its platform may borrow some improvements from ICOs that went more smoothly, for example REcoin.
and in worst-case scenarios, The REcoin Trust guarantees a liquidity ratio of up to 70% of the currencys market value. Compare this to the Federal Reserve requirement for liquidity ratios for financial institutions, which is set at a maximum of 10%.