

Yes, it does have a cost. It has a far smaller cost than serving the real thing. It also allows me to firewall them off and stop serving them, even if they come at me with real browsers. That’s a very definitive win: I saved CPU time, I saved RAM, I saved network bandwidth, and I stopped them from accessing my stuff. How is that not a win?



I wonder too, why they didn’t, because they’re happily crawling domains that never had anything but junk on them. To me, that suggests they have no idea they’re trapped. Not at crawling time at least.