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.

lucasstad

<p>Lucas String Replace replaces any string on any WordPress processed page with another string.<br />
It takes the final output of WordPress and replaces defined strings with another string.</p>
<p><strong>New:</strong> Add multiple strings to replace and create mutltiple sets</p>
<h4>You can use it, for example, for the following purposes</h4>
<ul>
<li>HTTPS Protocol Rewriting (replace any “http://domain.com” with “https://domain.com”)</li>
<li>Better WordPress (Multisite) Domain Mapping (replace any “myblog.domain.com” with “www.myblog.com”)</li>
<li>Replace or add HTML to a specific place</li>
<li>Make changes or add contents to your sitemap.xml (non-static, tested with XML Sitemap Generator) or to your robots.txt</li>
<li>Repace or change anything made out of letters and numbers…</li>
</ul>
<h4>Please note</h4>
<ul>
<li>Lucas String Replace can slow down your website speed. It is recommended to use it in combination with a caching plugin to keep your website fast.</li>
</ul>


Lucas String Replace

Does what "Say what?" does not do: change widget titles too

Pretty neat

Change anything: Lucas String Replace takes the final output of WordPress and replaces the defined strings with another string

Ajaxed Comments vs Lucas String Replace