The solution is simple. Look at the bottom of your shoes. Are they flat? Yes? Then yeah the Earth is flat.
Its so simple!
Other than message boards and forum trolls, I have yet to meet anyone in real life that shares this theory as fact. It seems to be more of a gigantic online troll topic more then a valid conspiracy theory. I also find it ironic that the flat earth conspirators are the same people who condemn Islam and other religions as living in the past, while they are trying to do the same with modern techno logic society...