Well then, someone really didn't want those 8787 DRK anymore...
Same thing happened at the same time yesterday. Real conserted effort going on here. One or two people panicking I get, but when these red candles show up periodically for weeks -- standing out as outliers given the market volume, even after RC4 improvements have been made clear... Yeah, something's up.
Partly, its scrypt miners.
I've been back on my old LTC account at litecointalk.
ASICs are forcing miners to switch off. Some have turned to x11, x13 and x15 (if that exists yet). If they mine shitcoins, they lose money. DRK is one of the few that they make money on.
So there are x11 multipools that pay in DRK, we've seen those. Now we have GPU miners that can't mine scrypt, don't want to sell their GPUs because the market is saturated, and so they mine DRK.
Mining supply of DRK is too small to affect daily price. If you have 2880 new coins per day, of which something like 2400-2500 go to the miners, and supposing multipools have, say, 50% of DRK hashrate, it's just 1200-1300 coins per day max for dumping - and that would have to be split in an uncoordinated manner because not all multipools would dump at the same time.