Wow that thread just kept going. Whilst the LWN article covered most of the "highlights" I think this reply from Theo is pretty suscient on the topic at large [1].
Thats awesome lmao
there are lots of portions of code today, prior to AI authorship, that are already not copyrightable due to the way they are produced. the existence of such code does not decimate the copyright of an overall collective work.