Just of top of the head examples, and hopefully vague enough to not spoil anything for anyone, but jig in the right direction:
- there is a cult of one sex that may be targeting the opposite sex entirely in ritualistic way
- there is a big personality, bigger than life some would say, that hunts down women, and the group they belong to also have very similar views in that regard and hierarchy.
Those are not really secret either, immies can learn those in their first weeks, and maybe it's just the outward perception that got it wrong about them, I cannot say for sure, but there are other examples too, and I am not the deepest into the esoteric lore.
But i will admit that one of them did give me oocly creeps as it was a bit too like real world.