1script - 3:51 am on Nov 2, 2012 (gmt 0)
Tedster, you're back! I think you're little ways north from the storm's path but I may be mistaken, anyway, hope you're OK. I thought you may be sitting without power having not seen your posts for a whole day :)
Anyway, getting back to the topic: those aren't really zombies, this traffic is as good as the "normal" was. It's just strange that they all of a sudden decided that the site is more about Y rather than X which they thought it's about for the last 2+ years. And, BTW, there's not that much difference between X and Y as far as the subject matter - just a different set of words.
It may also be simply that I got seriously demoted for the older KWs and the new ones just became more visible. Also, there's always the large amount of visits with KWs not reported, and that will skew the data. I'll try to think of a better way to sort that out.