All the gods who have ever owned the hearts and enslaved the minds of billions have asked for that which they do not need , revealed nothing beyond the science of the day, made their most important message identical to the stories of children, chosen an elect voice hearing, vision seeing, faith feeling elite to lead and have faded with the culture that created them.
History , in this regard, teaches nothing to the dupes who fall for it time and again. A real god who was interested in humans would act differently to all human imagined gods, it would - as all rational beings do - teach the futility and danger of faith. No all powerful god wishing to communicate with another race would send fragmented babblings in dreams and telepathic Chinese whispers allowing that message to be further sophisticated by the prophets and mystics who play power games with everyone else. A real god's existence would not be in doubt and certainly wouldn't need to be proven or testified of on Internet forums or street corner soap boxes.