It seems like this person wanted to help with AO3 being down in their own way, but somehow decided that scraping the internet for fanworks and hosting them on a new site without asking permission from any of the creators was a good idea.
It seems similar to those people who will dump a 40k LoC Pull Request on an open source project that they vibe coded. Wanting to help, but misunderstanding every step, or like, how to interact with an established group. The article does say that the guy who made the vibe coded site is 17, so I don't wanna be too hard on him, but maybe he should have reached out to OTW to see if there was anything he could do to help first.
[the website creator] scraped the internet for works to populate the site using “a swarm of AI Agents controlling 40 virtual machines were scraping the internet for all drives, scrapes, and sources,”
Also this kind of stuff is wild because a lot of websites aren't really built to handle the insane traffic from bot crawlers.