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Highlight comments with a background color in the WordPress Comments Admin pages. Choose the criteria for highlighting a comment, add a note to show it with, and pick the highlight color.
This plugin is “for internal use” and only highlights comments within the WordPress Comments admin. The typical use case for this plugin is to inform/remind users about what to do for a particular type of comment. Examples:
<ul>
<li>
Comments from John Doe – Always approve unless it’s about topic XYZ
</li>
<li>
Comments from IP 12.34.56.78 – Give a personal, non-standard response to these comments
</li>
</ul>
You can highlight a comment based on the contents of the commentor’s name, email, or IP address.

Comment Moderation Highlights

Highlight comments in the Comments Admin. Pick a color, add a note.

tyfdesign

When activated, this plugin: 
1. Closes comments and pings on all existing public content (posts, pages, and custom post types). 
2. Sets WordPress defaults to disallow new comments and pings on all future content. 
3. Ensures that newly created or updated posts remain closed to comments. 
4. Hides the default Comments menu in the admin sidebar when enabled. 
5. Provides a simple Settings page with a single Activate / Deactivate button to toggle behavior.
When deactivated, the plugin restores the default WordPress discussion settings without reopening previously closed comments.
Created by TYF Design.

Do Not Allow Comments Everywhere

A lightweight plugin that globally disables comments and pings across all WordPress content - past and future.

Comment Moderation Highlights vs Do Not Allow Comments Everywhere