Riecoin is ONE of the coins traded at Poloniex, an actually only people holding BTC are affected. Go spread FUD somewhere else.
I would like to add that actually Poloniex is taking full responsibility of the hack and reimbursing from their pocket the lost BTC. Most exchanges just disappear after something like this, I can see Poloniex becoming a major player in little time.
As I Wrote before, Poloniex is one of the Exchanges where RIE is traded. Riecoin is also now listed on MintPal, and will soon appear on Cryptsy, as there was no premine, and is got new code on it..