Attempting reverse engineering is not a good trading strategy. One needs to create their own methods. Imagine those people who wish to emulate living a life of some idol, maybe Elvis Presley or anybody for that matter, you are better off to be yourself, not a carbon copy of something else. Why be a facade of someone and ignore your own character and talents. IMO it is no different from traders who read for example books by some famous trader like Al Brooks, and attempt to replicate their trading style. The end result is all you want to do is copy someone and your own creative spirit becomes malnourished. Indicators are of the same, some bs wiggly line which you follow, hoping it will tell you when to buy and sell, as if that wiggly line had a brain which predicts future action.
I could hand you my exact signals and methodology and you would still fuck it up. The edge is not in the trades alone, it is the experience and vision of the person trading them and the decisions they make is how they manage risk which you can never learn blindly looking at entries and exits. I have literally showed people in the past how I traded options or tick phucked futures and then when they show me their trades or positions they out on they are completely different from what I would have done or even took on more risk than I explained.