Everyone loves it when someone leaves a comment on his article. For bloggers, this is an indicator to them that someone actually reads their blog and their articles really meant something to them.
However, this is not always true.
Some people tend to leave a comment on your article for a backlink. In other words, they do it for the sake of SEO. When this becomes more often, you’ll lose valuable comments and only get those “Thanks for this article” or “Your article is awesome” kind of comments. While Akismet does a great job to fight spam comments by bot, this kind of comment usually won’t get caught as spam by the Akismet fliter.
However, for the most website, this kind of issue is really easy to handle. You can simply delete these spammy comments or mark it as spam through your WordPress dashboard. However, for a bigger website that receives thousands of comments per day, this kind of comment is hard to moderate. The best way to handle this problem is by removing the URL field.
To remove the URL field from the comment section, simply put the following code in your functions.php:
Removing the URL field will discourage those people that want to leave comments for a backlink to leave comments on your site. This leaves your website with more valuable comments.