Pyramids and the flat earth - banned at ifers

I've been researching flat earth for some months and although I'm still on the fence,the globe seems ever more doubtful. For years I have researched ancient civilizations and this is the one thing holding me back.

Can anyone explain how or why the great pyramid displays round earth measurements? I asked this genuine question at ifers and got instantly banned. What is going on there? Where can I have a reasoned debate about this? Sometimes Ifeel like I'm having some form of breakdown and really want to get as close to an answer as I can.

Thanks and Hello all!