Yes, CiviCRM is technically a Drupal module, but it's also a standalone application with its own community of users (who have some overlap with the Drupal community, but also WP and Joomla folks).
So it seems to make sense to start a separate SE site for CiviCRM. You can help get it off the ground by clicking to support this initiative!
As a member of both communities, I want to say you're all the best! Thanks for all the mutual support over the years.