Spamicide field still visible
It's not really a bug. Simply hide it in your theme instead. Just try to use technique a bit less obvious than display: none; as many bots know it already. Note that newest version of Spamicide module (7.x-1.0-beta3 at the moment of posting) does not even provide CSS file. All it does is:

/**
 * #post_render callback on the spamicide field. This will wrap the field
 * in a div so it can be hidden with CSS.
 *
 */
function _spamicide_field_post_render($content, $element) {
    return '&lt;div class="' . _spamicide_get_css_class($element['#name']) . '"&gt;' . $content . '&lt;/div&gt;';
}


See line 81 of spamicide.inc.