Comment by oxygen_crisis

You use public data only for your external-facing products like Copilot and Bing.

You use all data, public and private, for your in-house skunkworks LLM-AI used by vetted, NDA-bound staff and execs.

Bing won't be able to answer questions like "What are the monthly active user counts for CoolService LLC?" or "What are the manufacturing processes used at Gadgetmaster International?" but maybe DarkBing will.

Even if LLMs aren't good enough to deliver those answers today, they might be in five or ten years, and in the meantime you want to fill the pool of data you're going to feed it.

Cynical speculation? Yes. Eventually possible? Maybe...