In what way? To be clear, I didn’t mean to suggest that anyone should limit their vocabulary (certainly not when it comes to the, um, rather innocuous word “rather”), just that from the relatively little that I know about you, I was surprised it was an expression you used. Nothing wrong with that - I’m here to learn things like this, after all.
My explanation is in the edit above. The slightly comic or whimsical nature underlines the emphasis