I get many people that are linking to some of my pages on the site and by me approving this comment they are getting a link back to them as well. My question is. is it important to approve this comment and place their link on my blog? if yes, why?
its not really necessary until unless the website linked to you is authentic..because a lot of scrapers intentionally link to you with the intention of getting backlinks...avoid such comments and mark as spam...