I am personally not here to convince flat Earth believers -my goal is to separate science from mysticism.
I like to see preconceived notions challenged, that you will see on forums like this, sometimes in new and interesting ways, like the question "Is the earth flat?" you need to think about what you know, how you come to know it, what sources you trust, and often you can learn something new along the way. At the bottom of it all, ( for me at least ) it's about always learning something new.