Oh, hey, I've run into this in the wild--the Kalendar AI people keep ineptly trying to start a conversation to sell some kind of kiosk software by referencing factoids they scraped from our latest press release. They've clearly spent more effort on evading spam filters and rotating domains than they have on anything else, but they helpfully use "human" names ending in "Kai," so creating a wildcard filter wasn't too hard.

Credit where it's due: I'd never heard of Kalendar or the software company who hired them, but this experience has told me everything I need to know about both of them. If you don't sweat the details and rate sentiment change using absolute value, that's kind of impressive.