cangoou - 8:30 am on Mar 16, 2010 (gmt 0)

It was like i had specially formatted my personalization results to ONLY include those Caff datasets in the exact same SERP order.

What could be a reason for G to put so much work in such a thing? Just to make sure no-one can analyse the different datasets during the update? Or has this something to do with the target groups you mentioned before?