It would depend on how rare the rarest endings are. If there are only a handful of copies of one of the endings and the handful of people that got it don’t engage with the online fan community (not everyone who reads books are online about it), those people might not even know there are different endings, let alone that they have a rare one.
It would depend on how rare the rarest endings are. If there are only a handful of copies of one of the endings and the handful of people that got it don’t engage with the online fan community (not everyone who reads books are online about it), those people might not even know there are different endings, let alone that they have a rare one.
Which would also negate whatever chaos the author was trying to sow.