There are always people who “know more” than everyone else. For them it is very enticing
to jump to conclusions such as that Man never landed on the moon, because as soon as they buy an argument and conclusion such as one of these ones about the dust, etc., they then “know more” than everyone else. You will also see this phenomenon with regard to asparatame causing brain cancer, Adderall (a medication often used to treat children with ADHD) turning children into serial killers, etc. These individuals have poor ability to weigh evidence.