Recently Antartica has become quite a well mapped location
Meh. It's a claim that kinda-sorta fits observations, much like most of RET. If all you have to say is "RET exists!!!", then I really don't have much to say to you. Sure, it does.
I think you may have taken my post as some kind of insult or form of angry rant, you know my position, I don't really need to be stating "RET exists!!!". I'm actually curious about how observations of a relatively small continent (relative to the rest of the globe earth) could be mistaken if the actual size and shape of the land is spanning around the entire (flat) earth, the article I linked to was specifically about an organization working to map and keep mapping the landscape, of which you can find data on their website including in the form of a map which I find really interesting to look at (the environment artist in me maybe);
https://livingatlas2.arcgis.com/antarcticdemexplorer/mistaking a massive doughnut shaped ice wall for a much smaller blob continent would be hard to do IMO, which is why I'm curious about your thoughts. How could this have happened? with the all the data they've collected I'd be surprised they didn't come to the conclusion that it's a wall around the earth, were the earth flat.