Curious why you didn't believe it: I assume the "NSFW" link means you believe it now?
It reads like something people want to believe - that there are mysterious hidden depths to the model, in a way that hints at consciousness or spooky ghosts.
It would also be very easy to lie about, and say that they were using an older, unpatched version of the model that isn't available anymore.
Reminded me of a cross between an SCP story and urban legends about the older pokemon games.
Checked and confirmed though, everything I tried except for "petertodd" reproduced.
It actually did this. I tried many different types of prompts when this was discovered, the unearthly behavior is real.
EDIT: https://imgur.com/a/DVZ67xZ