x11.ltc1btc.com and wafflepool have been mining drk separately for a while already, and they always had over 30-40% of the blocks, its x11.ltc1btc.com dumping 80g of chinese hashes onto wafflepool making it more obvious.
They actually made wafflepool less profitable for old miners
x11 Stats
Date BTC Hashrate BTC / 1MH vs LTC
Jul 18, 2014 (partial) 27.15784433 106.59 GH/s 0.00031975 184%
Jul 17, 2014 17.00206005 41.07 GH/s 0.00041398 245%
Jul 16, 2014 12.01222799 22.02 GH/s 0.00054544 321%
Jul 15, 2014 9.91806994 24.28 GH/s 0.00040851 238%
Jul 14, 2014 10.93665827 25.60 GH/s 0.00042726 248%
Jul 13, 2014 8.90837862 22.60 GH/s 0.00039421 224%
Jul 12, 2014 8.11079080 22.24 GH/s 0.00036466 224%
Last Hour of Coin Mining
Not the fault of wafflepool.
ahh.. this clears things up for me. But its still a very unhealthy situation, having one pool with so much power / hashrate
I know about that 51% attack issue, but its not likely I think.
I have been observing waffle pool, their tactic actually works quite well, by jumping in and out of different coins with 20-40GH/s, they can grab a bunch of blocks quickly without raising the difficulty or network hash rate, and this hit and run, riding the difficulty wave tactic is more profitable than sticking with a single coin alone. But now with over 100G at same time, it will get network hash rate and difficulty up and noticed.
A few days ago, someone told me only 35BTC of darkcoin being mined per day, still small compare to volume on mintpal even if they are all sold.