Thats not true so much, cobinhook applies relativelly high witdrawal fees. And they increase it when the price plummets.
It is strange that the fee for withdrawal of "utnp" is very high. I'm stuck "untp on hitbtc and the withdrawal fee is more than 2000." I also really surprised it was: to be listed on hitbtc sure team "utnp" would take a pretty big fee, When hitbtc automatically removes utnp, they are completely helpless, I contacted hitbtc but did not get the answer.
There are always a lot of different negative information around this exchange, to be honest, I just dont trust the exchanges and bring my own funds there only for exchange! It is best to store tokens or coins in wallets but not in any way in exchange!