Incorrect Trivia Info

From what I've seen, it appears nigh impossible to correct a wrong item because the wrong info stays there despite correcting it. Now you've got two items when there should only be one. Why does that happen? This occurred when I was researching the date Kathleen Nolan was injured in a fall from a horse in "The Real McCoys". Two different dates in the trivia section, the wrong one and my fully researched date. As a simple example, if someone writes a trivia item about the town drunk in "The Andy Griffith Show" calling him Floyd Lawson and I write something about the same piece of trivia but with the correct name, Otis Campbell, why in the world would IMDB keep both items? It creates nothing but confusion amongst IMDB readers. My specific concern this time is a WARNING: SPOILERS item under the first episode of the TV western, "Lawman".