You can change comment settings post by post on WP 2.7 or greater.

Cheon, YoungMin

<p>When you want to apply different comment settings like comments per page, order of comments, …. for specific post or page, this plugin would help you do what you want.</p>
<p>Some requirements</p>
<ul>
<li>Your theme should compatible with wordpress 2.7 comments system.</li>
<li>Octto wrote about <a href="http://ottodestruct.com/blog/2008/09/29/wordpress-27-comments-enhancements/" rel="nofollow ugc">wordpress 2.7 comments enhancement</a>.</li>
<li>In short, your <code>comments.php</code> must use <code>wp_list_comments()</code> function.</li>
</ul>


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