According to Osho, there’s no direct address because, in truth, there is no separate audience: we are one organic unity in a vast field of consciousness, so who would address whom? Conventional salutations—'Ladies and Gentlemen,' 'brothers and sisters'—are false labels rooted in social fiction; he favors friendship and loving relatedness over roles, so formal address becomes meaningless.
He doesn’t greet you with titles because he sees everyone as one living whole, and labels like “ladies,” “gentlemen,” or “brothers and sisters” feel fake—he prefers simple friendship and love.