Yes, Poloniex seems to be dangerous right now
Some traders complain about the withdrawal of assets there.
but I still believe Poloniex still works well.
there is no evidence that poloniex will die soon, this problem must be resolved to add new trust.
Still, there are many people have strong faith towards the Poloniex exchange because even i never faced any problem with the Poloniex exchange in terms of withdrawals. Yes, previously many people faced a lot of technical issues with the poloniex exchanges and this makes many people think negative about the Poloniex exchange.