Flat earth is a Psyop, there are at least a couple of true conspiracies but nobody is going to believe the crowd who also says "Hur Durr the earth is flat", it will be automatically dismissed as the ramblings of crackpot naive morons.

Also earth flat -> therefore god

So it's like in Scooby Doo when you remove the mask of flat earth and below is the mouth breathing religious zealot who believes in everything and has the audacity to call others sheep.