Pontoon, at least the moon myth has something somewhat realistic behind it. They believe in the moon, they believe its round, they just question whether men went there or not... i can live with that question. I dont mind pointing out all the evidance associated with the moon landings, provided people are willing to discuss it reasonably.
The earth being flat is unforgivably stupid and i wont engage that asinine debate. Put those morons to sleep to prevent their breeding into the general population and lets move on.