there was no attack 51, why misinform, all the blocks were mined in order on one pool, just the coin was actively merging, there were no buyers, so they closed the trade
Their are and were buyers, maybe on low price, but this is not the business of the exchange, CE is just a platform.
What CE claim now is very strange, we all see that aurumcon.com restored their balance and trade was back, if network was attack for 500 approvals why no one complained that he have problems in transfers? I do not believe CE.