I think those should be allowed iff the nature of being AI-generated is relevant to the topic of discussion — e.g. if we're talking about whether some model or other can accurately respond to some prompt and people feel inclined to try it themselves.

I constantly read those comments and I personally have conflicting opinion with them. On one hand, it's interesting to compare what is coming out of models, but on the other hand, LLMs are all non-deterministic, so results will be fairly random. On top of that, everybody has a different "skill" level when prompting. In addition, models are constantly changing, therefore "I asked chatGPT and it said..." means nothing when there is a new version every few months, not to mention you can often pick one of 10+ flavors from every provider, and even those are not guaranteed to not be changed under the hood to some degree over time.