Full privacy policy: https://ironmedia.com/baitbuster/privacy

Nothing about you is sent anywhere. Scrolling YouTube sends nothing at all. When you click the BaitBuster burst on a video, only that video's title and captions are sent to the BaitBuster server (ironmedia.com) to generate and share the answer. No account, no analytics, no trackers, no browsing history, no location, no personally identifying information. Whether a video is already busted is checked locally in your browser against a downloaded list.