* I would never assume the AI answer to a consequential problem to be authoritative, unless it shows me the source and I can click on the link to verify the source and the data presented (search engine use case).
* Rewrites with AI are bug-prone and often produce hard to trace bugs to the seemingly correct nature of these bugs. Generating the scaffolding works super well.
* Images are often too smooth, videos too robotic and rhythmic, water too shiny, etc. Trained eyes can easily distinguish between AI and real.
* Hallucinations are commonplace.