1. The flat earth society is demanding proof that the earth is spherical. However, if the world were flat, it would be the easiest thing in the world to prove. All you'd have to do is fly an airplane to the so called Antarctic wall. If the plane see the edge of the earth, then I will believe the earth is flat. If not, then the earth spherical. I am inclined to believe that the plane will not reach the edge of the earth because in the 3 million years of human existence, no one has ever beheld the edge of the earth (and it is for this reason that the spherical earthers sprung up in the first place.
2. That flat earth society demands proof of the world being spherical, and while we have supplied that proof many times over, they refuse to believe any proof of it.