Not strange if you grew up alone in your mom's basement and developed no social skills. Possibly home schooled and not blessed when it comes to intelligence. And the only thing that binds you to the other people is on the brink of falling apart, so they desperately try to hold on to it by refusing the obvious: a globe.

And what's even more sad, is that there are a lot of influences trying to argue with their community, making fun of them and trying to destroy their fantacy. All to hoard in views and followers to make money from ads. Pushing these people even further away from reality and society,. Alienating them.

Haha yeah! Actually I doubt they believe the earth is flat, I got the feeling it's more an excuse for outcasts to unite and feel unity, the "us against the world" thing. Like: "If no one accepts me, I'll just go all the way into weirdness and find others who are also not accepted, so we won't have to be alone. Let our thing be so damn weird and stupid, no accepted person would dare to join us."

But that's just my hypothesis after watching this docu and some other stuff about and from them.

But there are some fanatics that actually believe it, but I think they need mental help because they strike as people having a constant psychosis. Even the general group finds them weird and extreme.

It's really sad.