I recently wrote an article on my blog and allowed commenting. Recently, I have seen several comments but they don't say anything -- they just show my article and are giving me the credit for the article (except for taking out my affiliate link, which I can understand.
But what is their purpose. This particular site that did this only has two links linking back to them according to Alexa, and they are in India.
I run a WordPress blog. Should I approve the comment or mark it as spam and delete it? I don't want to take unnecessary chances of having some horrible worm take up residence on my blog (causing me to have to start all over). Can someone please give me some direction here?