There have just always been many un-informed people.
No offense to anyone, but, that's how it is.
There still are many un-informed people, regarding many other topics of interest.
This could be considered to mean that there are secrets out there, but in reality, the information is not secret at all. Rather, people have themselves chosen to not seek it out.
Seek and you can find the truth, which sets you free. That is how CZ has worked for some, but some of the really good "secrets" aren't pasted on any of these boards, while some good information is.