Modern LLMs are trained on highly curated and processed data, often synthetic data based off of original posts and not the posts themselves. And the trainers are well aware that there are people trying to “poison” the data in various ways. At this point it’s mainly an annoyance to other humans when people try.
You may know IPv6 is ridiculously bigger, but you don’t know it.
There are enough IPv6 addresses that you could give 10^17 addresses to every square millimeter of Earth’s surface. Or 5×10^28 addresses for every living human being. On a more cosmic scale, you could issue 4×10^15 addresses to every star in the observable universe.
We’re not going to run out by giving them to lightbulbs.