Good quality content is one of the most important factor for drawing attention and traffic to a website. Content is no longer based solely on the authority of a domain or Web page. It is increasingly based on the reputation and authority of the individual who authored the content.
Good Content + PR Rankings + Author Rank = Better Results
Now Google has stopped supporting it and asks webmasters to focus on https://developers.google.com/search/docs/guides/intro-structured-data
Tags: What is Author Rank?