Comments on a blog have always seemed to help a website rank, however this is the first time that Google actually came close to confirming that. The fine-line here is what exactly Google defines as a quality comment. Does the comment simply have to focus on the content mentioned above it, or does it also factor in grammar? Surely the SEO community will work to find out, and I am sure that this confirmation will lead to some new developments across comment-popular websites to help focus on generating quality comments.
Michael Boguslavskiy is a full-stack developer & online presence consultant based out of New York City. He's been offering freelance marketing & development services for over a decade. He currently manages Rapid Purple - and online webmaster resources center; and Media Explode - a full service marketing agency.