Just don't panic sell guys or it will be hard to recover.
Yup, just some folks taking profits on early gains, wouldn't worry too much. Good time to get in if you're not already or would like to get more invested before the DarkSend release.
I think it may be related to panic selling @ poloniex specifically. I mean some people were cashing out at any price. That's why on c-cex there was no cheap DRKs.