[Retroman]

You can say whatever you like is fake...
And deny that the huge circular light in the sky is real.

Doesn't make it true =]
Many people said the planet was flat, but they were wrong.
Problem is, you're the type of person to say that perhaps they were all right and the planet is actually flat. Which is just your way of being awkward.

This arguments just steadily become more petty.
Your way of proving that bigfoot exists is by saying something completely mad, and claiming that the moon is fake.

There's no logic there at all.
You might as well say "That tree in your garden isn't real, it's actually an alien lifeform in disguise living off the soil so it can someday fly back to its own planet, that's why Bigfoot is real"

It makes no sense, and has nothing to do with it.
It scares me to think some people think like this, it really does.