I guess the difference is whether it's clear to a reasonable observer that something is satire, parody, or otherwise dynamically generated (as your wasarrested.com site states) for humorous purposes. ChatGPT is presented as a fact-finding tool, not something that generates funny garbage.
What makes you believe ChatGPT is presented as a fact-finding tool? When you sign in for the first time, this is what you see before you can use the tool:
> ChatGPT
> This is a free research preview.
> Our goal is to get external feedback in order to improve our systems and make them safer.
> While we have safeguards in place, the system may occasionally generate incorrect or misleading information and produce offensive or biased content. It is not intended to give advice.
Something in here must have given you the impression that this is a fact-finding tool, but I can't imagine what it is.
