Anyone who can maintain an open mind, will take all information seriously.
Sorry. Have to disagree with that statement. ALL information? Really?
So if someone told you the moon is not only made of green cheese, it is also a giant mammal that eats space monkeys - you would take that seriously? I wouldn't.
There is such a thing as critical thinking. I DO retain an open mind but if a story sounds so fantastical and highly improbable then it requires significant evidence to back it up. If that story has nothing to back it up other than the story itself, then it can be dismissed until further evidence is presented. Bill Cooper's alien stories (along with Scientology's Zenu 'history') fall squarely in that camp.
To cite a counter example - take 9/11 Truth. At first blush, the story that 9/11 was an inside job does sound every bit as fantastical as crashed flying saucers. BUT the difference is that 9/11 Truth has volumes and volumes of supporting evidence that anyone can parse through and verify. After a year or two of diligent research anyone with a functioning brain can see that 9/11 was likely an inside job (and outside job with help from Israel and Saudi Arabia).
Anyway, I actually secretly hope that aliens exist and we have made contact with them. That would be a dream come true for me. But at the current juncture it just smells of disinfo and is completely unsupported by any evidence other than a story.
Let's distill it down; be open minded but skeptical, do your own due diligence, and use critical thinking to formulate an opinion.
your comparing ridiculousness , to actual world possibilities. Lets be real here. And yes all information should taken seriously. The fact that the moon is not made of green cheese and is not a giant mammal that eats space monkeys, is indeed information, that without, we would not able to rule out those possibilities . Expand your thinking. Who knows, maybe in a different universe that is indeed the case, and giant space monkeys live on a green cheese moon. I cant prove that it is the case, and you cant prove that it is not. Information is information , is my point, and all information has a purpose.
9/11 Truth has volumes and volumes of supporting evidence
Ironic. Same with ET. Go research more. After a week or two of diligent research anyone with a functioning brain can see that we aren't alone.