Hidden Underbelly is a brand dedicated to the art and pastime of honest, polite, and scientific investigating of unusual claims. As primarily a discussion forum, Hidden Underbelly is committed to providing concise and useful resources while avoiding repetitive debates and arguments. The platform encourages threads to stay on-topic and for discussions to be conducted respectfully.

Each thread ideally focuses on a specific piece of claimed evidence, with a thread title that accurately describes the content. Hidden Underbelly was initially created as a more flexible forum for regular posters from the Contrail Science site to discuss a wider range of topics. While discussions cover various 21st century bunk topics such as 9/11, false flags, and pseudoscience, the focus is not limited to the paranormal, cryptozoology, or religion unless there is noteworthy evidence to discuss.

Additionally, the brand also emphasizes the importance of skeptical investigation and debunking, providing a dedicated forum for practical debunking discussions