Graviex is a total scam and stealing peoples coins. Stop using this exchange. They are not registered anywhere. No license to track nor office location. They can do an exit scam anytime. Stay away from this exchange as they are unlicensed.
Not going to argue with your reasoning one bit, but did you bump this thread because you got scammed by them or are you just boosting your post count? If it's the former, you should fill out a scam accusation form in a separate thread.
Ironically, these oddball exchanges that don't seem to be registered anywhere are the ones that don't require KYC and seem to be drawing in a lot of customers because of that and because they list all the shitty altcoins as soon as they're cranked out of the meat grinder. You're taking your chances with any of them, but the day is soon coming when there won't
be any non-KYC exchanges left. If I'm not mistaken, graviex has been around a while and does at least have some kind of track record.
But you're still spot-on about the risk of them just disappearing overnight with their customers' funds. On the other hand, the same could be said of SouthXchange, Yobit, Xeggex, and a long list of similar exchanges.