This is tricky. There may be a time we are unaware of all of the ways AI may assist our writing. Is auto-correct AI? How about auto-suggest? Your article was surfaced to me through AI because of my interest in the topic. What if my AI is able to change what I'm reading to make me comprehend it better? Or if it's translated, or read through speech synthesis with emphasis put on different consonants?
If you use a machine to write a title or big chunks of text, that's the easy part to disclose. It's all the stuff that we don't see that's hard to expose.