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Lightweight plugin that overrides the default widget “recent comments” in WordPress, adding an avatar display visitors comments and quotes length of 50 characters.
Is a direct descendant of WP_Widget_Recent_Comments.
Example markup that is generated by the plugin(for theming):
<pre><code><ul id="recentcomments">
 <li class="recentcomments">
 <div class="alignleft">
 <img width="32" height="32" class="avatar avatar-32 photo" src="http://0.gravatar.com/...%3D32&amp;r=G" alt="">
 </div>
 UserName: excerpt comment <a href="http://example.com/page/#comment-ID">»</a>
 </li>
 <li class="recentcomments">
 ...
 </li>
</ul>
</code></pre>

WP Recent Comments With Avatars

Adds avatars and announcements comments. Compact code.

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EffortLess Disable All Comments allows you to disable comments, trackbacks, and avatars across your WordPress site or multisite network with a single checkbox. When enabled, it removes comment functionality, hides the Comments and Discussion menus, and blocks comment submissions. Uncheck to restore all features.
Features:
<pre><code>Disables comments and trackbacks for all post types.
Removes avatars site-wide.
Hides Comments and Discussion settings in the admin.
Blocks comment submissions via frontend, admin, and REST API.
Multisite support: applies settings network-wide.
Simple toggle to enable/disable.
</code></pre>

EffortLess Disable All Comments

Completely disables comments, trackbacks, and avatars site-wide or network-wide with a single toggle. Multisite compatible.

WP Recent Comments With Avatars vs EffortLess Disable All Comments