Personally, I'm skeptical of blaming everything on AI scrapers. Everything people are complaining about has been happening for decades - mostly by people searching for website vulnerabilities/sensitive info who don't care if they're misbehaving, sometimes by random individuals who want to archive a site or are playing with a crawler and don't see why they should slow them down.
Even the techniques for poisoning aggressive or impolite crawlers are at least 30 years old.
The only thing that seems to have changed is that today's thread is full of people who think they have some sort of human right to access any website by any means possible, including their sloppy vibe-coded crawler. In the past, IIRC, people used to be a little more apologetic about consuming other people's resources and did their best to fly below the radar.
It's my website. I have every right to block anyone at any time for any reason whatsoever. Whether or not your use case is "legitimate" is beside the point.
And just to not leave it merely implied, I don't give a rats ass if that slows down your "innovation." Go away.
If your antivirus software hammers the same website several times a second for hours on end, in a way that is indistinguishable from an "AI crawler", then maybe it's really misbehaving and should be stopped from doing so.