netmeg - 6:14 pm on Mar 20, 2013 (gmt 0)
That might be.
Also, if *I* were creating my own evil botnet to perpetrate click fraud and put clicks into my own AdSense account, I'd certainly turn it loose on a bunch of other sites (including sites without ads) just to mix it up a bit and leave a more varied footprint.
Not that I would ever do such a thing, but if I did, I hope I'd do it smart. Just sayin'. You know.