Disqus discovery is an ad publishing program which will give you additional revenue as well as traffic to your website. It automatically comes after the comments section. This can be disabled by following steps.
Login to DISQUS using your credentials.
Click on the settings tab in the top right hand side menu.
Click on the discovery tab in the second level menu
Select the radio button near to the “Just comments” section.
Click “Save Changes” button in the bottom of the page.
You are done with the activity. Please refer the screenshot attached here.