Poloniex customers holding STEEM and a number of other coins were notified via email that the exchange has begun the process to permanently delist the cryptocurrencies. If you have any STEEM on Poloniex, you MUST act to move or sell those coins.
IMPORTANT DATES for STEEM holders:
Trading Disabled: Oct 15th 2019
Withdraws Disabled: Nov 15th 2019
Be sure to withdraw your STEEM assets before the deadlines!