Two uses I can think of are i) text and image content moderation on fb and instagram (won't need as many human reviewers if bots are as/more effective), and ii) chatbots for businesses (businesses could provide their business documentation to a meta LLM which could handle customer inquiries via messenger and whatsapp).

Anything else?

Now, with the enormous data center growth for AI purposes, companies don’t even bother pretending that any of this is sustainable.

At best, they might delude themselves into believing that a glorified text autocomplete program will magically solve the world’s problems, including the unsustainability of the machines running the program.

One could make a bearish claim on NVidia, that their revenue/valuation is unsustainable unless the AI industry grows 100x over the next few years.