Dont worry! No GPU miner! its botnet...
GPU miners may already be at work:
"I was looking at Qubit on the list which has 5 hashes overlapping with DRK. Fastest cpu miners are developed by the same people that develop our DRK miner. This means that GPU acceleration is 100% possible in it by "downgrading" our sgminer and making it run the 5 hashes instead of 11. Some other cpu coins have overlapping hashes too which mean GPU acceleration for them too."
"maybe phm help us to porting darkcoin gpuminer on qubitcoin gpuminer))
p.s. if i dont wrong, the same part hashes is in quarkcoin, sifcoin and others forks of this coins..."
We have already mined most of 248 million QubitCoins, so maybe GPU miners are not so big problem at all.