Oh haha, this has to be that Zoom feature where you save meeting transcripts and where host<->anyone transcripts are available to anyone who can view transcripts. Always found it weird that that was an automatic setting instead of a manual one. I get the use-case but defaulting to it is probably confusing.

Either FatShamer1 or FatShamer2 must have been the host and victim must have been a person with access to transcripts (which is every participant in case of the default Zoom cloud settings?). If neither FS1 nor FS2 were host then this wouldn't have happened.