However, not every comment will drive traction and credibility for your site and
brand.
One of the best blog commenting tips you need to know is that not commenting
at all is better than commenting the wrong way. It doesn’t matter who you are; if
your comment doesn’t add to the value the content brings, you’ve probably
fallen prey to one of the mistakes I’ll share with you in this article.
Not that long ago, I left 249 comments and generated $25,000. I strongly believe
that I could make more by avoiding the blog commenting mistakes below and
I’m confident you’ll see dramatic results with your comments as well.
Here are the 8 mistakes to avoid when writing comments on blogs: 
1. Over-optimizing with your keyword in the “name”