There's one thing missing in the flow chart though: measuring distance by time if travel is involved.
I cannot prove this, but I have a suspicion. Most Satanists do not truly venerate the Morningstar, they go through the motions of venerating Satan as a protest against the overreach of organized religion in the public sphere. At least in the United States, if you watch them, they tend to make a visible stink in Bible Belt when Christian symbols are displayed on public property. I suspect most Flat Earthers do not truly believe that the world is not round. They are simply protesting the overreach of activist scientists. They seem to be most visible and loud when questionable acts are done in the name of the common good like economically damaging climate change laws or mandatory vaccinations. Or maybe both groups are self-destructive attention seekers.