alt Hacker NewsI had to block meta's ASN on my personal cgit server a few weeks ago because they were ignoring robots.txt and torching it. Like hundreds of megabytes of access logs just from them, spread around different network blocks to clearly try and defeat IP based limiting. I couldn't believe it.
IMO ASN-based blocking should be much more common, but unfortunately it is not supported as a first-class configuration option in many common tools.