There are no shortage of admins who run bot-assisted deletion tools and uncritically accept any tag placed on an article as valid without pausing to read, which effectively means that a bad tag won't get challenged.
One, who I remember writing to this very mailing list about almost exactly ten months ago, was running at three deletions a minute for over an hour with something like a 4% rejection rate. There's got to be false positives there, and no shortage of them...
I remember that. There was much outrage and, as far as I know, the admin in question stopped (or was stopped). Do you know of anyone doing it since? If so, you need to report them and get them desysopped.