Flat Earthers hold their belief because they know something's off about the official narrative and it's the closest they've gotten to the truth. It's the most stigmatized and ridiculed theory, not because they believe in a flat earth, but rather the other truths many have uncovered along the way.
(media.communities.win)
Speculation
the CONSTANT anti flat earth shills, though not solid proof that the earth is flat, is somewhat indicative it could be flat.
The long distance photos are the biggest thing for me, it's obviously not as told.