I hate to break it to you, but they were just bots. Log out and log back in, and they play through the same identical "conversation".
I don't know what I expected, but that was very dissapointing.
The problem with this sort of thing being so rampant on the internet is now I suspect you and the rest of the comments about interacting with this site, are either bots, or not capable of differentiating between actual human interaction and interacting with bots.
To take that thought even further, how far will this go? We already have ai phone agents larping as humans, pausing to think, simulating background chatter of a call center, and the click clacking of keys on a keyboard.
Whats next?