I love backlinks…I really do.
I love traffic from those backlinks…I really do.
But there's one thing I don't like from all that traffic…and that's people who try to post useless comments for the sake of a backlink.
Commenting on blogs is important. It shows search engines that your blog is alive and kicking; people are interacting and showing interest in what you have to say. Moreover, you increase your visibility in the search engine results because of that.