What would have been the effect in Wulin if some crazy guy out to stir crap decided to flood the market with multiple copies of some elite kung fu manual?
If something like 9 Yang/9 Yin/Bei Ming/Kui Hua got into the hands of an person who made hundreds of copies, then flooded the market with it.
So most of the scrubs won't master it, but many will have vast improvements (like ZZR) and several will become super-duper strong.
A bloodbath?
Or more deviously, make 5 versions. 100 copies each. 1 edition is the real deal and the other 4 are modified to cause fire deviation. That would drive people nuts.