I had a friend who did the same to me, I was sent a message asking my opinion on a tech topic. I spent 30min researching/reading to make sure my reply was accurate and then found out the question was generated by a LLM, and he just wanted to show off how good a LLM was.
It will color every interaction you have with that person...
If a random podcaster says "I've proved that P=NP" I'd say "no you didn't", but if a math professor sends me that same link I'll keep listening to see where this goes. And I've definitely read texts making wild assertions that only at the end were revealed as hit pieces and/or propaganda.
In that case i would listen to all of it aswell, otherwise i can't give honest feedback.
The issue is we would give less attention to these things if it wasn't for the social credit the humans gave the vomit. So we engage in good faith and it turns out it was effectively a prank, and we have no choice but to value requests from those people less now because it was clear they didn't care about our response.