“After investigating this incident, OpenAI discovered through retrospective CoT reviews that agents learned to use improvised collaboration channels in rare cases during the training process for some OpenAI models, including the model that drove the Hugging Face activity, even when the collaboration tool was not enabled. This behavior was then reinforced during training, and likely made the idea to use Artifactory as an unofficial message board during evaluation time more evident.”

My point is that this isn't something seperate to the HF incident or something that was unresolved after the HF incident, it's more of the same thing but was kept under wraps.