Erku, thanks for catching this. If we're going to be using Barry's bandwidth to download the pdf, I'm giving him also a byline and a link to his article and comments in seroundtable.... Google Updates The Search Quality Raters Guidelines On September 5th
Sep 9, 2019
by Barry Schwartz
As Barry notes, the update comes 4 months after the previous update in May... which is fairly soon for a Quality Evaluators Guide update. The article cites reviewers who have published or who generally do publish reviews of these Updates. I feel that so far, all of the articles Barry links to are worth reading.
Emphasis in reviewing this ongoing document is about what changes Google makes where. Areas of change suggest where Google has been putting its emphasis in ongoing core algorithm changes.
It's quite clear that high level expertise is increasingly important in Your Money or Your Life (YMYL) pages or topics.... IMO, the highest levels seem to be in areas which Google feels vital to the functioning of a well-organized society. The guidelines clearly suggest that Google sees different types of expertise, formal and personal, as important for different types of sites, and that these criteria are evolving.
Note (again) that the evaluators do not rank websites... They evaluate how well groups of sites, seen by different algorithms in a blind test, fit Google's evolving criteria of quality as laid out by the Guidelines. In a sense they are evaluating algorithms. To the extent that the algorithms derive from the guidelines, they are also evaluating the guidelines.