I'm with you confusedandalone. Why the mystery and space for interpretation and various religions. Just shoot white hot magma up everyone's ass for 60 seconds (or at least simulate it) and while you have everyone's attention just say: hey you bunch of f***ups! I'm going to put a list of requirements for decent human behavior in your pocket. Read it. Act accordingly. Your instructions are the same as everyone else's instructions (very short - love you neighbor as youself). I'll be back next month to check on things. All those who don't decide to get on-board will get more personal attention.
Since he hasn't done this or something similar, I can only conclude he/she/it is not interested or doesn't exist.