Hey A80,
The thread was moved to Complete Nonsense, and can still be found
here.
The reason is that we've realised the author of the thread is an alt of a prolific troll - pricelesspearl - whose entire MO is to make Round Earth sound stupid by posting ludicrous arguments "in favour" of RE. He (and many of his alts) has been permabanned on the forum for quite some time, so the alt should have been spotted and banned much sooner than it was - that's on us. However, now that we did spot it, the alt has been added to the permaban, and since the thread was started under dishonest premises, it's been moved out of the public-facing boards.