So, poloniex is down? Or they are going to be scam?
there is a massive scale dumping going on in the altcoin market and that means a lot of orders are being placed and that is a lot of requests to a weak server they have. so they go down a lot these days.
although i have to say i am using their public API to get the charts and i have not experienced any downtime in previous days and i update that thing regularly
they are always down when coin price rises or falls... also, they are saying that they are under DDoS...