The unnecessary way that you would berate a complete stranger (Cindy) demonstrates YOUR lack of social grace. In fact, if you were so superior to her, that alone should ensure your compassion and force you to express your opinions and assumptions with a little more tact.
Furthermore, while we are on the subject of etiquette, where did you learn that it would be appropriate to make improvements upon someone's spelling and grammar when you were not asked to correct it?
I would feel very sorry for Cindy if her only lessons regarding etiquette were to be taught by you.
