2 weeks in crypto is a long time, people are not clued up on darkcoin, so they see "2 weeks RC4" and then panic dump to release liquidity for them self's, they then buy other coins to make profit to buy more drks before the new RC comes out. See it all the time.
All the time! EVERYBODY is making PROFIT! ALL THE TIME!
And someone pay the bills. Once they have payed they leave and will never come back.