I believe that you already know one of the tactics of increasing your traffic to your blog is comment on other blogs, but do you ever know that comment on high ranked post is the most ideal way and has higher chances to generate more traffic to your blog?

May be you do not know, these high ranked posts are probably getting many visitors from search engines which we called organic traffic. My advice is always comment with useful information and opinion, this may happen if readers see your comment and find it is interesting, then you will have high chances that readers will follow your link to your blog. Remember, leave your URL when commenting posts!