A Sinister Brood of Web Crawlers Is Hatching

I think the author is being too kind when they reiterate the idea that we can ask these folks to "be more respectful."

If someone is peering into my windows, the first time I'll ask them politely to leave. The second time I'll call the police, and purchase curtains. The third time, I'll eventually call my lawyer.

There's not really an internet police we can call - so an aggressive defense is the only reasonable answer in this particular dark forest. Block, and maybe run Napenthes if you're interested in spending the CPU cycles & bandwidth.