From Stunts Wiki
She is the High Priestess of the Gods who lives in Stunts Valhalla. They speak through her and answer your worries about tricks, shortcuts or anything related to Stunts. If you enter the Temple of the Stunts Oracle you can pray for mercy and illumination. Making donations may help if you need a quick response.
She also had a site (listen.to/stuntsoracle) were you could ask her your doubts referring the track, car and competition rules.
It was a real service for help racers to improve their skills but only few used it. This service started in December 2002 and the Temple was closed in January 2005. Alan Rotoi raced under Stunts Oracle name in ZakStunts season 2004.