Sean “Diddy” Combs’ infamous alleged “freak offs” were so shocking, they had hardened criminals reeling from the debauchery. RadarOnline.com can reveal a cocaine dealer claimed to have seen high-profile celebrities tangled in drug-fueled orgies at one of Diddy’s wild parties. He took off running as “weird s–t was starting to happen”, claiming “celebrity guys” were “f—ing each other”. Combs, 54, was once viewed as a “modern-day Gatsby” whose extravagant star-studded soirées were hailed as legendary in Hollywood. But his get-togethers emerged in a new light after he was slapped with a federal…