Simple views custom field plugin

Add

/**
 * {@inheritdoc}
 */
public function query() {}

if you don't use any queries

Use 'views' table name ($data['views'])

/**
 * Implements hook_views_data_alter().
 */
function MYMODULE_views_data_alter(&$data) {
 $data['views']['blacklist_author_views_field'] = [
   'title' => t('Blacklist Author Link'),
   'field' => [
     'id' => 'blacklist_author_views_field',
   ],
 ];
}