Ok, first thing, did you not understand the image is a joke? Secondly, you have failed so badly at trying to use logic. And you’d notice it everywhere on the earth, both because of the moon and also just light scattering, it would become darker than ever before. And as said, most people would be asleep on the dark side, which is obvious. And it’s not like the astronomers etc. have some kind of worldwide siren to get everyone’s attention, most people wouldn’t notice it for a while, even if they posted about it online.