That's the image that they like to create, and I think for the most part they like to have the algorithm do as much of the work as it possibly can; however, thi

That's the image that they like to create, and I think for the most part they like to have the algorithm do as much of the work as it possibly can; however, this post by Aaron Wall that includes Google's General Guidelines for Remote Quality Graders might make you think differently: http://www.seobook.com/full-text-googles-general-guidelines-remote-quality-raters-april-2007 http://www.seobook.com/full-text-googles-general-guidelines-... (Looks like the document has been taken offline since.) In fact, I think that using manual raters to tweak the algorithm makes a lot of sense.