Beware of Poloniex,
They use bots to pump and dump coins and ponzi schemes, at the moment the exchange is pumping DASH which is a ponzi scheme, they create these big pumps, attract investors who short them, them keep them stuck for weeks. If you dont know Poloniex is designed to suck in investors, use bots to create fake volume.
It pretty easy not to get scammed once u know hwat to look out for .Only invest in coins u believe in and only buy at the bottom of the roller roster .Coins are dump and dumped by whales but good coins generally go up in value long term .Just do not get sucked into the hype and be a a bag holder