My opinion is that this is a group of well connected whales, realy large ones, that are pumping so much different coins.
I have never seen anything like this happen before, we all know how pumps&dumps work, but with this many coins? This has to be the first.
yes, people also need to know all these originated from exchange poloniex
Poloniex is the next Gox. Just wait and see. There is no way those price rises are sustainable in the long term. There will be blood. And trust me, you don't wanna own any coins/fiat on poloniex when that time comes.