This is very interesting. I always knew that Google liked dynamic sites as opposed to static. Sites with different posts always seem to rank well because there is ever changing content. Plus, the comments add to it.
I did not realize the impact but it makes a great deal of sense. I presume Google looks as the entire page, article and comments, as one. Thus, all that is added is, by default, an extension of the original posts.
Am I understanding things correctly?
RE: An SEO Lesson Gamified for the LEO Community