What's amazon's angle on this? Because it's not believable that they wouldn't have an angle.
So the real question is - how is amazon going to enshitify drm-free books? Are they trying to wipe out gutenburg, standard-ebooks, etc?
Are they trying to be the youtube of drm-free? The place where everyone goes, and that becomes crap due updating Ts&Cs - inserting ads or charges?