If you going to asked me this kind of question then my answer will be : For me ! Etherdelta ( Forkdelta ) is not a safe crypto exchange to trade your altcoins or tokens because it can be easily activate by only signing in your MEW private key and address. If I am going to add some security to it, i will prefer to have some confirmations in gmail or phone numbers when accessing your accounts in Etherdelta.
As for me forkdelta is not yet safe because its not yet stable, yet we didn't know how to hadle trades same with etherdelta. If we see its just same with etherdelta, maybe we should study more times before entrusting our coins to trade in this site. We need to do more trial and errors before we can conclude its safe.