Comment by omnicognate

That doesn't preclude clearly documenting what the feature does somewhere in the manual or online. People who either don't care or don't have the mental capacity to understand it won't read it. People who care a lot, such as specialist reviewers or your competitors, will figure it out anyway. I don't see any downside to adding the documentation for the benefit of paying customers who want to make an informed choice about when to use the feature, even in this cynical world view.