"If you care to actually look into it, you'll find that flat-earthers have accounted for most/all of these. I'm not a flat-earther, but it's worth looking into before stating things that "obviously can't be accounted for with a flat earth."

That does not match my experience. I did looked into it and I found no consistent model of a flat earth. Lots and lots of words and sometimes even with consistent logic at times - but build upon completely false assumptions and flawed logic and therefore worthless. (you can proof anything, if your basic assumptions are made up)

"I don't think flat-earthers have accounted for Foucalt's pendulum however. "

And some of them tried and believe they did, but only when ignoring other facts and used twisted logic.

Like some parent poster had said - it is not about proof, but way more about ideology.

Otherwise they could very easily have a real proof, by sending up a weatherballoon, or organise a boat trip to the end of the world. But since they always refuse to do so (I challenged quite some with that concept) or even really think about it - they likely suspect inside that they are wrong, but rather not confirm for real, because then they would have to abolish a lot of their other ideology like chemtrails etc.