An early version of the previous post said "support teams", and with a broken heart, I changed it to "support operations", because evidently, in Duolingo, it's not quite a team any more, and probably in many other companies.
XFEDI
ActivityPubConversation
So anyway, they now have a bug, and instead of a customer support person who would process that bug, they now have a buggy LLM that responds with a flatly wrong answer instead of getting someone to realize that it's a bug.
The LLM (now that I think of it, they probably call it "an agent") likely proceeds to close my support request, improving the statistics of successfully closed support requests.
Job well done.