Removing Comment Subjects

This tutorial does more than disable the subject. It removes it completely.

First you want to open you comment.tpl.php file which can be found in drupal directory (on your server) / themes / current theme / comment.tpl.php

Open that file. You will see a code that looks like the following:

<div class="comment<?php print ($comment->new) ? ' comment-new' : ''; print ($comment->status == COMMENT_NOT_PUBLISHED) ? ' comment-unpublished' : ''; print ' '. $zebra; ?>">

  <div class="clear-block">
  <?php if ($submitted): ?>
    <span class="submitted"><?php print t('!date — !username', array('!username' => theme('username', $comment), '!date' => format_date($comment->timestamp))); ?></span>
  <?php endif; ?>

  <?php if ($comment->new) : ?>
    <a id="new"></a>
    <span class="new"><?php print drupal_ucfirst($new) ?></span>
  <?php endif; ?>

  <?php print $picture ?>

    <h3><?php print $title ?></h3>

    <div class="content">
      <?php print $content ?>
    </div>

  </div>

  <?php if ($links): ?>
    <div class="links"><?php print $links ?></div>
  <?php endif; ?>
</div>

Inside that code locate a smaller code that looks like the following:
<h3><?php print $title ?></h3>

Delete that small code.

*SAVE AND CLOSE ALL FILES*

Done. Now you have a site that has subject-free comments.

Post any problems and questions here and I will help you out.