When you think about it, historical evidence would suggest that sharing of information is what created leverage, swap, slippage, volitility swings, spreads (bank and broker edges) - as we all know technology has since taken over with the ability to backtrack, dissect and reverse engineer any system on all timeframes in periodic measures within minutes.
I am new to Babypips forum, however I am a seasoned trader, like most traders I have created my own system and perfected it over time, I still hesitate to share certain information, like anything else, when it comes to money, your system will eventually be copied, modified and marketed. I guess you could say that to me it would be like sharing your salary in a work environment. Not criticizing the sharing of best practices, just not used to it.
I have seen similar strategies to my own, however the closest match I have encountered to date is an estimated 60%, various missing elements or different components. (I guess that's why there are menus in restaurants)