One of my friends while writing e-mails, uses small “i”, against the general language rule. Initially, it looked strange to me. Later, i understood that it is actually right. Small “i” sort of represents less ego. Isn’t it? It tells that my attitude is as good towards you as it is towards my own self and that “u” are as important as “i” am. Learn to acknowledge others, because they make you whole and complete.