I don't think there is a way to trade options decentralized since crypto transfers by nature are irreversible and not enforceable.
I'm agree with it. Even on bitcoin untill don't have vanilla option, have only binary, but binary option is very risky game. For trade vanilla option on NXT need the centralization agent, for example - any of exchnge, who must have money of a participant's trading and ececuted correct count the variation margin with following distribution beetwen them.
May be, for start need begin flexible option.
And peoples, how you want to count IV and price for option? For me it's really interestingly. )
to aan - do you don't fear to sell option? It can be bloody result on very volatility instrument.