Just for some needed context, here's what IA says about "borrowing a book"[1]. The critical point,
> Click on the book you would like to borrow. You will be taken to the item page and will be given the option to Borrow This book. Click on Borrow this Book. (If the book is on loan, you will be given an option to Join Waitlist)
So, at least before "quarantime", they only propogated one copy at a time of any title.
Yes, before the Emergency Library, they maintained a reserve of physical copies of book they bought or owned. Once that limit is reached, you can't borrow it. Sounds possibly legal.
But this is new: unlimited borrowing. That's the opening for this lawsuit.
> Click on the book you would like to borrow. You will be taken to the item page and will be given the option to Borrow This book. Click on Borrow this Book. (If the book is on loan, you will be given an option to Join Waitlist)
So, at least before "quarantime", they only propogated one copy at a time of any title.
[1] https://help.archive.org/hc/en-us/articles/360016554912-Borr...