They'd probably still find users willing to flock to their exchange if they resumed operations and started repaying their debts. There aren't that many KYC-less exchanges, with minimal KYC for fiat deposits/withdrawals as was the case with btc-e/wex. At one point you could even make large deposits and withdrawals in cash (I think the minimum was $50k USD for EU countries).
Then the users would get what they deserve.
It's emerged that BTC-e was basically a giant money laundering operation all along. I can certainly believe they were selectively scamming all the way through. Then this turned up and farted itself to death.
Why would anyone risk it again? If they were up and running again and paying debts I'd be withdrawing my debt and absolutely nothing else.