"Heather" also tested out Snapchat's search tool, finding that "even though she used no sexually explicit language, the algorithm must have determined that she was looking for CSAM" when she searched for other teen users.
But literally in just the previous paragraph:
Posing as "Sexy14Heather," the investigator swapped messages with adult accounts, including users who "sent inappropriate messages and explicit photos.
Gee, I wonder how the algorithm could've possibly suggested these users. What a mystery.
I'm not defending Snapchat here - they're a scumbag company with a scumbag product and they should be held responsible for enabling the sharing of CSAM on their platform - but it doesn't just match you with random predators out of thin air. They went in with specific keywords in their username and a pattern of account engagement.