The Advantages of Making Every Message Count
Let's be honest here. Getting hounded by a series of short messages, instead of one long message that gets the job done, is quite distracting. Maybe it's also my fault that I was bothered, since I simplyhave to answer every message as I received them.
A friend (names eliminated to protect privacy) is a proud Blackberry-owner, and has easily become a Crackberry addicted to anytime anywhere email. While we were discussing something, I noticed he was sending me very concise messages that barely explained anything. Something to the effect of: "ok" or "np." So I find myself having to send more messages for clarification.
I know old telegrams charge by the word, but short and sweet no longer applies to modern communication. In this day and age, it literally pays to send as few messages as possible, since basic wireless plans charge by the kilobyte. More messages, more kilobytes. Getting everything done in one go is cheaper.
And even if you use an unlimited plan, that's no excuse. Even if you're monthly bill will total the same whether you send "Hello World!" or the entire unabridged version of War and Peace, you're contacts might not be so lucky. Besides, why waste the network's time and put unnecessary load on it?
In short (punt intended), say everything that needs to be said, so that neither you nor your recipient have to go through the trouble of sending or receiving numerous messages, when only one would do.
And to my friend: peace! 
