>A janitor on another site told me they think CP bot-kun is actually posting manually with a VPN from a third world country. Someone is getting paid to do this. No idea why.
There's reason to believe it's at least somewhat manual - sometimes before the spam itself is posted, the same IP will post something like "nnkdjfngd" in a random thread using sage, seemingly to test if their IP is b& or not

They'll usually hit tons of other imageboard-related sites (including Japanese/non-English ones) all at the same time - usually multiple boards on those sites - so I still believe there's some level of automation involved. Money has to be involved somewhere, but I also half-suspect it's some form of government agency honeypot or a test to see how responsive/responsible a site's moderation is (given the imageboard format's long-held reputation)