Hey,
Looking in content-extensions.php I see this
// Create comments link and edit link
if (function_exists('childtheme_override_postfooter_postcomments')) {
function thematic_postfooter_postcomments() {
return childtheme_override_postfooter_postcomments();
}
} else {
function thematic_postfooter_postcomments() {
if (comments_open()) {
$postcommentnumber = get_comments_number();
if ($postcommentnumber > '1') {
$postcomments = ' <span class="comments-link"><a href="' . apply_filters('the_permalink', get_permalink()) . '#comments" title="' . __('Comment on ', 'thematic') . the_title_attribute('echo=0') . '">';
$postcomments .= get_comments_number() . __(' Comments', 'thematic') . '</a></span>';
} elseif ($postcommentnumber == '1') {
$postcomments = ' <span class="comments-link"><a href="' . apply_filters('the_permalink', get_permalink()) . '#comments" title="' . __('Comment on ', 'thematic') . the_title_attribute('echo=0') . '">';
$postcomments .= get_comments_number() . __(' Comment', 'thematic') . '</a></span>';
} elseif ($postcommentnumber == '0') {
$postcomments = ' <span class="comments-link"><a href="' . apply_filters('the_permalink', get_permalink()) . '#comments" title="' . __('Comment on ', 'thematic') . the_title_attribute('echo=0') . '">';
$postcomments .= __('Leave a comment', 'thematic') . '</a></span>';
}
} else {
$postcomments = ' <span class="comments-link comments-closed-link">' . __('Comments closed', 'thematic') .'</span>';
}
// Display edit link
if (current_user_can('edit_posts')) {
$postcomments .= ' <span class="meta-sep meta-sep-edit">|</span> ' . thematic_postfooter_posteditlink();
}
return apply_filters('thematic_postfooter_postcomments',$postcomments);
}
} // end postfooter_postcomments
So I imagine you can either override it or hide it with CSS using it's class