> checking contribution policies "before the fact"

GNU has no such contribution policy. As I wrote it's currently a discussions behind the closed doors. Those who inform about usage of LLMs are notified that their contributions won't be accepted, and I think I'm second or third in the whole emacs-devel mailing list history.

Thread about LLM contributions sparked after my piece, not before it.

From my research, the only prior discussion was in March 2026 with conclusion that "lawyers are looking into it" and no followup whatsoever.

Though, if I made a mistake during my research don't hesitate to correct me, because it will prevent me from making similar mistake in future.