Too much dumping isn't good because my Wife is always holding bags. She is holding her Rise, She said she will not sell it this low.
If you believe the coin will drop, not a bad strategy to sell some and buy back in later.
Or alternatively, set some really low buy orders... if they hit, your overall break-even price will be cut a lot. Problem there is figuring out a realistic low buy number that has a chance of being hit, and at the same time not being wrong and it sinks even lower.
Didn't get in on this ICO myself (did the Lisk thing, this one just felt like a cheap copycat), besides the twitter bounty. By the way, have they started giving that out yet?