dFactory

<p><a href="http://www.dfactory.eu/plugins/ajaxed-comments/" rel="nofollow ugc">Ajaxed Comments</a> seamlessly integrates into WordPress comments system and allows you to edit comments for a limited time, moderate and edit comments in AJAX, display error messages anywhere in the comment form and more.</p>
<p>For more information, check out the <a href="http://www.dfactory.eu/plugins/ajaxed-comments/" rel="nofollow ugc">plugin page</a> or see the <a href="http://www.dfactory.eu/" rel="nofollow ugc">Live demo</a> by posting a comment on <a href="http://www.dfactory.eu/" rel="nofollow ugc">dFactory</a> site.</p>
<h4>Features include:</h4>
<ul>
<li>Editing comments inline</li>
<li>AJAX comments moderation</li>
<li>AJAX handling errors</li>
<li>Edit published comment for a limited time</li>
<li>Option to set the editing time</li>
<li>Select comment statuses available for front-end moderation</li>
<li>Option to Delete a comment permanently </li>
<li>Show edit buttons only on hover</li>
<li>Highlighting comments</li>
<li>Select highlight colors</li>
<li>Animation effects for messages and editing</li>
<li>Option to hide error message after a period of time</li>
<li>Position error messages anywhere in the comment form</li>
<li>Select CSS style for comment buttons from none, WP default or Bootstrap</li>
<li>Select CSS style for error messages</li>
<li>.pot file for translations included</li>
</ul>
<h4>Translations:</h4>
<ul>
<li>French – by <a href="http://www.echodesplugins.li-an.fr/" rel="nofollow ugc">Li-An</a></li>
<li>German – by <a href="http://wdbase.de" rel="nofollow ugc">Andreas Reitberger</a></li>
<li>Japanese – by stranger-jp</li>
<li>Polish – by Bartosz Arendt</li>
</ul>


Ajaxed Comments

Ajaxed Comments adds AJAX to WordPress comments. It enables editing comments inline, AJAX moderation, error handling and time limited comment editing.

Sajjad Hossain Sagor

<p>This plugin adds feature to edit/change user username.</p>
<h4>Features:</h4>
<ul>
<li>Edit Username: Allows editing of usernames.</li>
<li>Only users with the <code>edit_other_users()</code> capability can change usernames.</li>
<li>If the “Send Email” option is enabled, the user will receive a notification email when their username is changed.</li>
<li>You can customize the email subject and body text in the admin dashboard or via filter hooks.</li>
<li>Modify the email subject using the filter: <code>wpeu_email_subject</code>.</li>
<li>Modify the email headers using the filter: <code>wpeu_email_headers</code>.</li>
<li>Adjust the email body content using the filter <code>wpeu_email_body</code>. (Note: <code>$new_username</code> and <code>$old_username</code> are automatically prepended to the email content).</li>
</ul>
<h4>Hooks Usage:</h4>
<pre><code><?php

add_filter( 'wp_username_changed_email_subject', 'change_email_subject' );

function change_email_subject( $subject )
{
    $subject = 'Your customized subject';

    return $subject;
}

add_filter( 'wp_username_changed_email_body', 'change_email_body' );

function change_email_body( $old_username, $new_username )
{
    $email_body = "Your custom email text body.";

    return $email_body;
}

?>
</code></pre>


WP Edit Username

Easily Edit User Profile Username clicking a button.

Ajaxed Comments vs WP Edit Username