Why is NHI not talking to the public directly?

This post comes from a discussion I had the other day in this subreddit and I thought it would be nice to read what you think about it:

Why are they not revealing themselves yet? if there are advanced civilizations visiting us, surely they have full access to the internet and basically anything human related. They know that we know about them. Does this mean that they have assesed that it is still not the appropriate time?

If that is the case, how much of a choice have the groups of humans in contact with them? Is the NHI allowing the groups of human in contact with them decide when to reveal everything? Are they ok with the fact that this technology is not being used for the benefit of the entire life in the planet? With unlimited energy everything would change… abundance of everything, a gold era like never before. Imagine not having to use significant time to travel from place A to B… imagine the reconstruction of entire habitats with swarm of drones planting trees, picking up the plastic from the ocean, etc.

I think that, given our violent behavior, it wouldn’t be wise for them to share certain technologies with us. It’s unfortunate for the people who don’t have bad intentions, but our society functions through representatives. And if we set technology aside, why not at least talk to us and say hi? We can handle it… we’re capable of understanding them if they choose to communicate. Isn’t there value in sharing culture or benign knowledge between different intelligent species? I think we would be very excited if we discovered a species like us.