Why Comment On Other Blogs Can Increase Your Traffic?

Many Blogger say that Leaving a comment on other blog is one way to promote blogs and get more visitor. Do you agree with this statement? If you ask this question to me, of course my answer is "yes". In my opinion, commenting on other blogs is a very good thing to get readers no matter the blog is a dofollow or nofollow. So what is my reason? If you are still not convinced about this,I will tell you some top reasons why you should keep commenting on other blogs to increase your blog traffic:
The blog owner and his readers will start knowing or recognising your blogs when you leave a comment on other blog with your identity.
You will get lots of traffic starting from the owner of the blog where you commented to his visitors.
You can build a good relationship with other blogger and if your blog have a good content, they will consider to subscribe your blog posts. Once they subscribe to your blog posts, you will have a regular visitor to your blog.
If your comment is unique and very interesting, the visitors of the blogs who read your comment will be interesting with you and will visiting your blog.
Many blogs let you leave a link of your website while writing comments for the blog. So if you leave a link to your blog while commenting, the chances you will receive traffic from their blog is more bigger.
Do you agree with my reasons? Or you have another opinion about it? So let me know with writing your comment on this post. Happy Blogging...