I think I grok the question.

God. When you actually read the Bible it’s quite clear how evil he is.

I have both the abridged and unabridged Stranger in a Strange Land, because they are very different books.

I have multiple copies of House of Leaves because I loan them out and am pleasantly surprised when I get a copy back.

A bonded spren of the third ideal or higher

I think it should be up to the wishes of the author and their estate. Aside from the Wheel of Time, The Pern series of books was handed off from the original author to her son while she was still alive - she even collaborated on his first book, then went over his outline for the next, and then handed it off to him to continue. That’s a far cry from someone just… taking the characters and trying to tack crap on.