you do realize "rare books" in this context most likely means random technical manuals nobody cares about and not collectors items, right?
I didn't realize that the list of books was published somewhere, so that you know with confidence what they're adding to the collection.
How do I browse the list you're using for tracking this?
Of course I could be wrong and they are destroying 14th century monastic scrolls or out of print Mills & Boon editions.
And that is a reasonable assumption?
If AI-scanners are somehow bid-sniping bona fide collectors and wealthy aficionados, there may be cause for concern. But that is most certainly not happening here.
Personally when seeking out rare books with few copies in existance and extremely scarce availability, I have often found listings that have lasted for quite some time. Not all rare books go to auction. You might be thinking only of some extreme of notable works and not a wider spectrum of desired but scarce publications that does indeed exist contrary to your confident assertion.
the part where the article avoids mentioning what book this was is a tell