First versions of Absolute Comments implemented several features that are now, out of the box, part of WordPress.
Absolute Comments now simply adds a “Reply” link into comment notification emails, prefills the comment reply with the commenter’s name, and adds a few cute icons.
There’s no option or settings: just activate and forget it’s even a plugin.
Official page: <a href="http://planetozh.com/blog/my-projects/absolute-comments-manager-instant-reply/" title="Absolute Comments" rel="nofollow ugc">Absolute Comments</a>
Tip: To keep track of this plugin’s evolution and features, you are advised to subscribe to the <a href="http://planetozh.com/exit/feed" rel="nofollow ugc">author’s feed</a> or follow him on Twitter: <a href="http://twitter.com/ozh" rel="nofollow ugc">@ozh</a>

Ozh' Absolute Comments

Reply to comments from email notification

Pippin Williamson

Remi Corson

This add-on plugin for bbPress will allow your forum posters to mark their replies as private, meaning that only the original poster and forum moderators can see the content of the reply. This is a great plugin to install if you use bbPress as a support forum where users may need to share confidential information, such as site URLs, passwords, etc.
If you have suggestions or bugfixes for the plugin, please report them on <a href="https://github.com/pippinsplugins/bbPress-Private-replies" rel="nofollow ugc">Github</a>.
Languages
Private Replies for bbPress as been translated into the following languages:
<ol>
<li>English</li>
<li>French</li>
<li>German</li>
<li>Dutch</li>
</ol>
Would you like to help translate the plugin into more languages? <a href="http://pippinsplugins.com/contact" rel="nofollow ugc">Contact Pippin</a>.

bbPress – Private Replies

A simple plugin to allow your bbPress users to mark their replies as private.

Ozh' Absolute Comments vs bbPress – Private Replies