One word, botnet.
yeah, i finished reading topic 
In case of botnet, the competitive groups of hackers should appear soon - they will declare war on each other for botnet resources, for each node, because each node brings a profit.
Do you think this war will reveal hackers?
Half a year of mega-profits and no known hackerz-warz for the nodes? -- unbelievable.
Quote
I operate a ~10k botnet using a ZeuS software I modified myself, including IRC, DDoS and bitcoin mining (13GH/s - 20GH/s atm)
20Gh/s 
botnet with power of 30 items of HD7970 a year ago? and now very quickly it grew up to 3000 HD7970 ? -- unbelievable. botnet mined BTC for over that 3 months having LTC profit x2-x3 than BTC and botnet owner still stayed on BTC? -- unbelievable.
Antivirus companies keep silence on this and cannot do anything to stop this botnet? -- unbelievable.