Earlier quoted context omitted.
I always got very amused when i got these letters... the stuff they claimed my IP had downloaded, was definitely not downloaded on my network. rotating IP addresses made the warnings pointless.
> rotating IP addresses made the warnings pointless. Your ISP knows which IP you have and when.
RIPE makes it basically mandatory to use dhcp in order to recive ip space, even though in most places it is completely useless since 2010, you save maybe 5% because literally nobody turns off their routers
also of course because there is no ip space now, admins put small lease times like 1 hour, or sometimes even less, so you have constant influx of logs and updates
i can imagine those scripts are buggy, misread timestamps and etc