Isn't it obvious they're referring to the use case of using a model given those constraints?

Yes, but I think the responder is wondering if there are useable use cases for that - like, what can you actually Do with that model. I’m in the same boat - I don’t want to ship my data to openai, I do want to run local, so I’d love to hear what other folks are Doing with models of that size.

"Use case of using" :)