The value of Etherdelta is on the volume. Otherwise it's slow and full of bugs.
Everybody could fork the ED github and run an exchange but without a value, you are doomed.
I understand this facts.
But if we talk specifically about this exchange, how do you think, is it safe to trade on it?
It seems there is no problem. we use metamask also to go into forkdelta. i have tried it and safe .. there is no other choice because etherdelta now does not work.