While some people in the search marketing world have donned their tin-foil hats, it
isn't algorithmically feasible to target brands, he said. What we see is related to "Web site authority (trust) and is triggered in a limited set of query types."
Harry writes in his blog post: "My bitch, (as always) is how some SEOs are now talking about the 'brand algo' and theories on what is causing the effect (one person even asked if 'bounce rates' were the cause *#$&@ ) which does little to make us look like we know much about search engines beyond how to spell the words." So he describes further what he thinks is at play.