I am not telling you that you should completely abandon SiteComments, as it does create a guaranteed flow of comments while allowing you to help others get comments on their sites.

However, by using the thread (https://my.wealthyaffiliate.com/authoring-writing-content/the-give-and-take-comment-thread-get-website-engagement/comment/22846120), you can leave a trail of invisible bread crumbs that could possibly bring more and more traffic with each comment you leave.

Something to think about.