It's always better to join trading competitions with popular exchanges. I don't think there is someone here who have used that exchange and if there is, that's very rare.

How did you know the trading competition? I can't remember that I even saw a news about this exchange. I'm aware of the forum shutting down but their exchange, I am not.

the competition is just a big scam for every one to use that exchange they use competition as another face of  free advertisement without wanting to give the reward to any one.