All of these example emails are very clearly AI spam.

I maintain that it would be trivially easy to qualify traffic from genuine blog readers if he wanted to. A simple keyword in a blog post would probably do it. Route qualifying email that includes the keyword into a folder.

These scams work through volume. None of those emails he gives as an example show any evidence that they actually scraped his blog or anything remotely requiring effort.

filter for effort and the problem is largely solved.