Poloniex announced to disable Steem from October 15th at 16:00 UTC

I just have noticed my email from Poloniex team that they are going to disable steem from their website. Does it means we are going to be more isolated? Does anyone know the reason behind the poloniex decision?

If you are holding Steem on poloniex, Please take action as the withdrawal from Poloniex will be disabled from November 15th at 16:00 UTC.

I have sold the coins recently from poloniex as it seems I can't manage time to check later as I have been busy with my abroad life.