You do understand that fg is virtual, and a d2jsp only thing.
Trades outside this website are not allowed, transfer of fg for non fg currency isn't allowed (execpt for some limited ways).
As much as i like an crypto idea, i don't think forum gold will succeed. There is one thing njaguar is very good at, and that is create stability by having none or zero to non inflation in his virtual coin. For years forum gold is worth the same for in game items for example. As long as i can remember, a soj is worth about the same in fg.
Crypto currency isn't really known for their stability
Great idea, but it not gonna work if implemented. On top of that, i doubt that njaguar will implement it, due to the inflation issues =)