Comment by katuskoti

Yep, Google outsources search ratings to humans working for a third-party called Leapforce - see "The secret lives of Google raters"[1].

There are specific guidelines for rating results, especially for political and medical queries. This is probably a big part of the massive decline in search quality - authority is valued more over accuracy to the specific query.

1. https://arstechnica.com/features/2017/04/the-secret-lives-of...