the world does appear to be flat, so I think it is incumbent on others to prove decisively that it isn't.

I haven't yet tracked down a good quote on this type of "asymmetric intellectual warfare", where one advances some outlandish claim that lays waste to large portions of a consistent belief network, and then insists it's the victim's obligation to repair the damage. I'm pretty sure the idea has been around for a while, perhaps not in terms of that military metaphor. Is that topic covered somewhere in the Sequences?