This is most certainly already happening. I find it kind of annoying not to know with certainty whether or not I'm engaging with a Genuine Human(TM) or not.

I'm unsure if it's confirmation bias, but I find myself noticing weird abberations in online comments that don't seem to be ESL related. (edit: it's probably just mobile swipe typing at play)

Your "real question" ultimately resolves itself because the moment the novelty wears off (and it will happen very fast), nobody will be interested in chatting with "robots".

Sure, I am the secret GPT 5 experiment. Now you got me. Congrats:)

Exactly how I'd expect a GPT experiment to reply! ;)

We'll hardly be able to tell the difference, if at all. Maybe it doesn't matter as long as the conversation is engaging for the human.

Yep. Interesting times ahead of us:) How we will be able to tell the difference? QR Code/Genetic sample government approved app for human verification?

And what when people are certain that the machines are better in everything, who will want to chat, listen to music or watch paintings from the "lame" humans, when the robots will be the ultimate solution for every human need?

As the tech stands today, mediocre artists, designers, writers and content creators are likely going to be replaced entirely with AI.

I imagine it would make it very easy to “seed” a website or a platform with initial “users” and content.

I also imagine it will be (and likely is already) being deployed to create the impression of popular support (or lack thereof) of a politician, business or policy.

Probably that was done first.