Email issue in DWQA plugin

We are using the DW Questions Answers plugin. The idea is that all subscribers get an email when a new post is DW Question & Answer is placed. I thought that this was the point. But the plugin only sends a New Question Notifications (to Admin) and only New Answer Notifications | New Comment Notifications to the follower of that post. What I want is, when a new question is posted, every WP user on the site should get a notification. We’ve found the code of the plugin where it determines the admin emails to send. If this can be tweaked a little to get the email addresses of all the users instead of the admins, that’d work fine for me. https://github.com/designwall/dw-question-answer/blob/59f1cf5b38ebbc10c2775cb5c9fbcc0a92d84ab3/inc/Notifications.php#L36

Any help is appreciated. Thank you very much!