Only Optout, no optin default.

This is the offfical code:

protected function getOptinStatus()
{
    $mailchimp_newsletter = new MailChimp_Newsletter();
    // if the user has chosen to hide the checkbox, don't do anything.
    if ( ( $default_setting = $mailchimp_newsletter->getOption('mailchimp_checkbox_defaults', 'check') ) === 'hide') {
        return 'hide';
    }

    // if the user chose 'check' or nothing at all, we default to true.
    $default_checked = $default_setting === 'check';
    $status = $default_checked;

    // if the user is logged in, we will pull the 'is_subscribed' property out of the meta for the value.
    // otherwise we use the default settings.
    if (is_user_logged_in()) {
        $status = get_user_meta(get_current_user_id(), 'mailchimp_woocommerce_is_subscribed', true);
        /// if the user is logged in - and is already subscribed - just ignore this checkbox.
        if ($status === '' || $status === null) {
            $status = $default_checked;
        }
    }

    return $status === true || $status === '1' ? 'check' : 'uncheck';
}

I mean, really?

$default_checked = $default_setting === ‘check’;
$status = $default_checked;

why not adding an apply_fitlers there that we can change that to out-out (unckeck) as default?

Really frustrating that we cannot obide the law as for the plugin has not the option to do so, except breakt updates and modify the code.