Few things to add here1) 79% of buyers of my goods are first time buyers 2) Your right i have seen abnormal purchases that have looked like buyers pumping feedback this is always reviewed closly and if there is concern i forward to the appropriate people 3) People impulse buy ;) thats why i make sales and have done a few thousand in sales4) to be blatantly honest i gave away free items both because I'm nice AND I did not directly link them because i wanted to figure out some other stats 5) I have only ever have 1 reported "trojan" in the hundreds of items I list and that trojan wasn't even a trojan it's a keygen hit IE a false positve from the major Producer of keygens CORE which md5's matched and there was no apparent phoneing home and that was in the I-Doser listingAnd your right hiding a bot would not be entirely hard but it would be quickly detected and then reported on sr and it would end just as quick as it started