Will Google be evaluating the use of rel=”author” moving forward as more sites use the feature on generic, non-article/news pages, such as the home page or an about page? Mike Wilton, Corona, CA
Answer is YES
Example
If Danny writes something in a low PageRank forum, Google may consider that post written by Danny with more authority, despite the overall domain/forum it was written on having low PageRank.
It will help in fighting web spam