Comment by dragonwriter

No, they aren't, for training AI, at least not based on anything but pure speculation.

The recent trial court decision that keeps being pointed to to support that:

(1) Found that for training AI, digitizing and copying works was fair use, period, with no requirement to destroy.

(2) For creating a centralized digital library for general use, digitizing works while destroying the hardcopy was fair use even with no intent to use them for training AI.