Boiling water on the tea is for black tea only. If you use that method on green or white tea you get a very bitter drink. Allow the water to cool a little first for green and white. Loose tea before bags every time.

With regard to the milk first or tea first controversy;

Tea drinking was encouraged for UK mill workers as a non intoxicating beverage. The cheap cups used would crack if the water was too hot so milk was put in first.

The aristocracy could afford porcelain which could withstand the higher temperatures. Therefor they put the tea in first.

Your preference reveals your class!