They are using portable generators only intended for short term usage in an emergency. One of the tradeoffs of being portable is that the generators are unable to combust the natural gas "cleanly"(under sufficient temperature and with enough oxygen, resulting in this ideal reaction: CH4 + 2 O2 -> 2 H2O + CO2), leading to incomplete reactions releasing many pollutants, most of which are at least suspected of causing cancer. This is acceptable in an emergency but not if some narcist runs them in a population center without proper permission to feed his horribly inefficient model in an attempt to keep up with other AI labs.
They're exaggerating the problem. You can get a users IP and user-agent string, but only in a vacuum, not linked to your username or anything else. And even if you could, this wouldn't be mutch of a problem, because this information gets passed to basically everyone and doesn't reveal mutch(only strongly approximated location(next big city in the worst case) and what browser an operating system you're using). Comparing this to email tracking pixels is a misleading comparison, because these can be connected to a single person(the recipient of the email), making the information more valuable(and add another layer of information, such as the time the email was first opened).
It's all a single person. I have OP tagged as "Moth Man" and they're everywhere.