This happened in my hall.
During a work-day at the hall, The co-ordinator directed that all older books (in this case 1980 and older) were to be boxed up and thrown to the tip.
I was kind of still in, and so objected and stated that "this is part of our rich spiritual heritage", as I had just had a talk on that subject not long before. The talk encouraged us to value all the older books.
In the end, I hid them all under the KHall, and progressively borrowed one after another to check them through. That is when I found out the really crazy stuff "we" used to believe!
These very books, "Our rich Spiritual Heritage" were full of wacky and crazy stuff!
It was then that I understood why they wanted it all destroyed!