Etherscan is the only exchange where YTC trading is possible till now. Look here, and you will be very surprised how many tokens have been traded during the last weeks!
You think Etherscan is an exchange? Oh lordy, that's rich.
What exactly is it that you are a "researcher" of? Surely its not cryptocurrency.
Not only do you think Etherscan is an exchange, but you managed to post the wrong contract address. Your link goes to YouTube Coin, which is entirely different from YuTuCoin!