What if they closed old accounts ? I think our coins are not safe in exchange sites
They might close old accounts only if the accounts are inactive(nobody has logged in for the past 6 months).
And they will try to contact the account owner,if he still has any cryptocurrencies in his account.
CEX.io isn`t allowing new accounts as well.It looks like the big crypto platforms can`t handle all the verification,withdrawal and support requests.By the way,you are right about our coins being not safe in exchange sites.Everybody uses those platforms at his own risk.