* Insincerity. I would prefer a disclaimer that you posted AI generated content than presenting it as your own words.
* Imbalance of efforts. If you didn't take the effort to write to me with your own words then you are robbing me of my efforts of reading what your AI assistant wrote.
* We have access to the same AI assistants. Don't try to sell me your AI assistants "insights" as your own insights. I can interact with the same AI assistant to gather the same insights.
Notice that the quality of the AI output is mostly irrelevant for these points. If you have good quality AI outputs then you are still welcome to share it with me, given that you are upfront that it is AI generated.