Good plugins, but..

Simple and clean.

For devs:
Maybe you can force the user to give permission for email with:
$loginUrl = $facebook->getLoginUrl(array(
‘scope’ => $scope,
‘auth_type’=> ‘rerequest’
));
Until enable permission.
The email “@facebook.com” generated does not seem a good practice.

Or add an action before inserting the user:
do_action(‘nextend_fb_pre_user_registered’, $user_profile, $facebook);