What I'm really asking/wondering is how (and who or which party) figured out that this was leaked, and secondly how that propagated to the public. I don't really expect to find that answer. But if I had to guess OpenAI found out first, because employees there are more likely to leak the fact that the leak happened.

But also, how was it caught in the first place? Was it automatically flagged because content scanners automatically identified this as a concern, or was his account specially flagged for extra monitoring because of who he is?