My personal adaptation of Hitchen's Razor for LLM content is that "that which is brought for review with low effort, must be dismissed with as much or less effort".

I think there's a category of Denial of Service vulnerabilities that we call 'amplified DoS' attacks, where the asymmetry of effort allows an attacker to generate a disproportional waste of resources, submitting LLM content output that magnifies the volume of the input, I think is a form of such attack, and hiding the fact that it is LLM would be the cherry that adds maliciousness.