I think you are missing my point, this is your argument
"Oh, those guys killed an old man the other day, I guess it's okay for me to do it too *kills old guy*"
This is the point of the thread:
"Oh those guys killed an old man the other day, *thinks about killing my old man blam right to the forehead*"
I copied part of your argument and left out the rest, its basically the same thing when I reverse engineer an effect. I take what I know "Oh those guys killed a man" Then I proceed to fill in the blanks with my own imagination, "Thinks of killing someone."
I didn't copy exactly what someone did but used my own mind like a spectator who figures out your double lift. I didn't steal anything, just used logic to fill in the blanks.