According to Osho, the danger is definite: the clinging human mind turns every liberating message into a new sect, as happened with Buddha, Mahavira, Jesus, and others. His antidote is nonclinging - take refuge in your own awareness, not in persons, images, rituals, or organizations. Let his words be pointers; become yourself rather than making Oshoism.
Yes, people like to copy and cling, but he wants you to trust your own inner light instead of turning him into a club.