Background scanner noise on the internet is incredibly common, but the AI scraping is not at the same level. Wikipedia has published that their infrastructure costs have notably shot up since LLMs started scraping them. I've seen similar idiotic behavior on a small wiki I run; a single AI company took the data usage from "who gives a crap" to "this is approaching the point where I'm not willing to pay to keep this site up." Businesses can "just" pass the costs onto the customers (which is pretty shit at the end of the day,) but a lot of privately run and open source sites are now having to deal with side crap that isn't relevant to their focus.
The botnets and DDOS groups that are doing mass scanning and testing are targeted by law enforcement and eventually (hopefully) taken down, because what they're doing is acknowledged as bad.
AI companies, however, are trying to make a profit off of this bad behavior and we're expected to be okay with it? At some point impacting my services with your business behavior goes from "it's just the internet being the internet" to willfully malicious.