Buy as many books as you want but please don't burn after scanning.
Can we really trust these AI companies when they're basically assimilating human art and culture and everything, only to go on and destroy the evidence?
It's not as though they particularly care, and it's not as though bad press matters with a captured regulatory environment.
There's a general sense that librarians are preservationists. This is far from the truth. Most books get pulped within a few years of printing. Librarians are constantly discarding books that don't get checked out to make space for new books.
The book ceases to be a book right at the beginning of the extractive process.