I have little sympathy for Google. The company should be regressing website engagement data against search queries on a keyword-by-keyword basis. If they can te

I have little sympathy for Google. The company should be regressing website engagement data against search queries on a keyword-by-keyword basis. If they can tell me how long visitors stay at my site after finding it with various keywords they should be able to use that data to order search results. Yet Matt Cutts repeatedly surfaces on HN to insist that publisher engagement data is sancrosanct (not even opt-in!) while it is now open season on user data up in Mountain View.