Short answer is NO. My spam blocking software Akisment has blocked 27,284 spam comments so far but that is not what this post is about. Most of those blocked are automated bot spams. There is a very small percentage of ignorant people who think they can improve their sites’ Google ranking and SEO by spamming their website on blog comments. I”m here to tell you that is a complete waste of time. All modern blogging software like WordPress will mark blog comments with the attribute nofollow. What this does is tell search engines to ignore the links and don’t index it. So while you may succeed in posting your link assuming it does not get deleted by the blog owner, it will have zero effect on your Google page rank and SEO.