Hidden? Most of the things I mentioned weren't hidden. Some were. Many were not, and some were broadly publicized by Scientology for Scientologists.
1) You were not aware of the 1969 SP Declare of John McMaster and his rapid descent into non-person-hood.
2) You were not aware of the heyday of "Source," with people returning from the "Flagship" as - sometimes screaming - fanatics for "Standard Tech."
3) You were not aware of Quentin Hubbard's suicide and his rapid erasure from Scientology history.
4) You were not aware of the inception of the RPF and the RPF's RPF in 1974.
5) You were not aware of the discovery, a couple of years later, that taking LSD made someone into a "zombie" who, to sweat out the "LSD crystals," would need to run around in a rubber suit.
6) You were not aware of the sentencing of Mary Sue Hubbard to federal prison, and her subsequent Scientological non-person-hood erasure.
7) You were not aware of the looting of the Missions in 1982.
8) You were not aware of the mass SP declares that followed.
9) You were not aware of the "Finance Dictator."
10) You were not aware of the release of the 1983 mass mailing, "The Story of a Squirrel," that denounced David Mayo as a "darling of the psychs."
11) You were not aware of the "LRH causatively discarded the body because it was an impediment to research" 1986 death event.
12) You were not aware of the banishment of "Ron's most trusted aide" and "first loyal officer," Pat Broeker, into quickly forgotten Scientological non-person vapor.
13) You were not aware of the publication, in 1987, of the book 'L. Ron Hubbard, Messiah or Madman?' by a former Class 7&8 auditor and Mission holder.
14) You were not aware of, also in 1987, the publication of the book, 'Barefaced Messiah'.
15) And, as the new millennium began, you were not aware of the Internet.
OK. I could see, if you were a public person, not being aware of the RPF and the RPF's RPF, and I could see, if one were a TRs-IN on-purpose "Bridge"-enthusiast, who doesn't visit "wog" bookstores or talk to "SPs," not being aware of some other things, but most of it?
How? Were you in the Sea Org this entire time? That might explain it.
If you weren't in the Sea Org, then it's much more plausible that you would be, at least somewhat, "aware of" most of these items, but dismiss them as either unimportant, or as "entheta."
But I'll take your word for it that you really were unaware.
And congratulations on becoming aware.