I'd like to weigh in here briefly to say that these new rules aren't necessarily because anyone cheated.  We can't confidently say that when the possibility of false positives exist even simply by using AI to translate from one language to another.

That's kind of what took us so long to come to any sort of agreement on how to police AI.  AI usage is not a new discussion among the staff.  This was at least the third instance of us trying to come up with a plan.

Having said that, we did make a decision to retroactively vacate a recent win because while we couldn't definitively say yes this person cheated, we also couldn't say that they definitively did not.  It was a tough situation that was many hours of investigation, experiment, and conversation.