And they had to add to the Bible (Book of Mormon) or change the Bible (New World Translation) to prove their doctrines. Why don't you apply the logic you spout to your own arguments and examples?
I do examine my posts for logic, and though I occasionally have to edit things, this isn't one of those times. You quoted, "By their fruits you shall know them" in response to my question, "What makes you think that satan was not at work in the development and translation of the KJV just as much as with newer translations?" My rhetorical questions follow the flow of thought.
Can you find evidence of any actual person promoting a false teaching that is based entirely on the wording of a recent translation? Alleged false teachings based on a KJV-onlyist's interpretation of something in a recent translation do not count. Since you argue for examination of fruit, please present the fruit for examination.