What distinguishes LLMs from classical computing is that they're very much not pedantic. Because the model is predicting what human text would follow a given piece of content, you can generally expect them to react approximately the way that a human would in writing.

In this example, if a human responded that way I would assume they were either being passive aggressive or were autistic or spoke English as a second language. A neurotypical native speaker acting in good faith would invariably interpret the question as a request, not a question.

In your locality.

I've asked LLM systems "can you..." questions. I'm asking surely about their capability and allowed parameters of operation.

Apparently you think that means I'm brain damaged?