Failed dive (no entry, head-first attempt at full speed, balking on platform): 0 points for that dive; Different dive than declared: may receive zero or judge-discretion lower score; Late on the platform (no dive within 1 minute of call): failed dive
Why people argue about this
People often assume that entering the water head-first is just a bad dive, forgetting that it's also explicitly forbidden by the rules in Cliff Diving, leading them to overlook how they could be penalized for this violation under Red Bull's scoring system.