I have a serious question. Anybody with enough money for the flight and lodging, it seems, can travel to Antarctica, and even stand at the South Pole. Here's the site I'm looking at, if you're interested.
https://antarctic-logistics.com
Since the Flat Earth Theory proposes that Antarctica is an ice wall and you cannot go across it, what IS Antarctican travel? Are you really being taken somewhere else? Are you simply being taken so far into Antarctica and stopping before the firmament? Is flying "across" Antarctica really flying in a circle around the ice wall?
The problem is that you are dealing with empirical observation enthusiasts here. For those that believe in the ice wall model they could say that an advert doesn't prove anything (which to be fair is a valid argument) If YOU went there, made a film and took pictures of your experience that would be something however as it was YOUR experience you might find your evidence is rejected on the grounds that maybe you weren't where you said you were, you faked the footage, you are a NASA secret agent etc.
The only way this proof would be accepted is if every single FE went themselves and saw it with their own eyes.
Also as a PS; you can't say "THE flat earth theory, there are multiple, each FE on this site might have their own personal beliefs. The ONLY thing they ALL agree on is the earth being flat.