For example, how in the world can we assert that Nephi, Mormon and
After all, he continually stated that not one-hundredth part of what was available was included in his final record. If that is the case, he simply had to have chosen what to include - meaning he chose what to "conceal" (or not disclose). It is exactly this dilemma that faces the Church every time it publishes a manual of any kind.
One of the biggest problems with many members' perception of the modern church's warts is that they don't have an ancient record that details many of the ancient warts - except the Old Testament, and it gets ignored far too much. Ironically, and directly opposed to the view of institutional concealment, the D&C is packed full of chastisements and recorded failures and weaknesses and humanity at its most basic and natural. It is our modern Old Testament - chronicling a time full of warts and wars and grandiose pronouncements and hellfire and damnation and all the stuff that makes the Old Testament such a blast to read.
We don't accuse modern Christians of "concealing" the Old Testament simply because many of them don't read or teach it - or, in some cases, even bother including it with the New Testment in the versions of the Bible that they use regularly; we understand they simply prioritize the New Testament (and generally the Pauline Epistles) to the exclusion of the Old Testament - that they just don't see it as important enough to spend time studying. As a lover of history, I disagree with that approach; however, I don't assign nefarious motivations to those who ignore the messy stuff to focus on the simple and inspirational when they really believe the simple and inspirational - especially in an organization that is being accused of concealment specifically because it has done such a good job of publishing and preserving the messy stuff.