1. Because the simplest of questions are answered in the wiki.
2. It is not necessarily the case that the perpetrators of the Conspiracy are aware of the Earth's true shape.
3. My opinion is that what was important wasn't the reality of the situation so much as public perception. Clearly both sides were putting on a show in a crazy game of chicken; who would actually have the balls to say that we actually accomplished the seemingly impossible feat of putting a man on the moon first?
1. The simplest questions is "why?". I have yet to see a reason behind millions of people hiding this knowledge and to what gain? I do not see that in the Wiki or the FAQ
2. The southern hemisphere long haul argument is a perfect example of how huge the conspiracy would have to be. Every pilot flying from Sydney to the cape of Africa or South America would know right then that the globe was wrong.
3. The earth was accepted to be a globe long before anyone tried to shoot a rock into space. Why the deception?
These are serious points and I would hope for serious answers. Not the standard "look at the wiki".
Why hide it and who gains from this?