But I'm asking why in some markets there are known relatively trustable sites, but not in others. What causes that? I also assume it varies dramatically by cult

But I'm asking why in some markets there are known relatively trustable sites, but not in others. What causes that? I also assume it varies dramatically by culture, language, region, population, period in history. Why? If you deny it varies, what maintains that? There either is a conservation principle (which must have some mechanism for maintenance) or there isn't (in which case variation probably relates to other aspects of reality, and what are they?)