Commeting on other blog and receiving legitimate comments for our blog post is really a good thing. It increase interaction and also helps in bringing traffic as it spreads information about your blog to other people. But be aware that there are times when you receive spam comments. People simply comment for advertising their site.
How to spot out a spam comment?
We need to use simple logic or commonsense in this case. You can see the name of the person who is commenting on your post. In most of the case for a legitimate comment you can see the people name not xyz etc. Also the email address also contains name of the person not “firstname.lastname@example.org“.
Also for a legitimate comment you can read the comment. In most of the case it is either appreciating or may be criticizing about your post. If you see someone who is advertising about their product or service then probably it is a spam.