Poloniex BITSHARES - Temporarily Disabled
BTS is currently under maintenance or experiencing wallet/network issues. Deposits and withdrawals will remain disabled until a solution is found, which may require an update from the BTS team. Any updates must be tested and audited before enabling."
There are already at least 5 posts with the same thing you copied and pasted.
Polo are full of crap. There are no wallet issues
Problem is on Poloniex side. Look at this https://bitsharestalk.org/index.php/topic,24531.0.html
there is allso pro lem in polo abut sbd