Emotion in Email

I've heard countless times that we have to be careful what we write in e-mail and text messages because emotion doesn't carry through in writing. Seriously? To the people making this claim: Have you ever read a book? Did you understand the emotion that the writer was trying to portray? Why is e-mail and text messaging any different? I think that we don't need to be saying "Be careful of what you write," rather: "Be careful HOW you write." We all know that email and texting has made it ridiculously easy to send a quick message to someone(s) else and it has been lamented many times that we need to read what we are writing before sending. It's true, but this doesn't mean that we have to remove emotion from our messages. I think we just need to learn how to properly put it in to our messages. The general train of thought is that since it's so easy to send a message, it must also make it easy to send a poorly written message. Doesn't it also stand to reason that is easier to send a well written message? I'm not talking about proper grammer, good spelling, or any of those sorts of things (although those are always nice to have), but rather complete thoughts that properly convey the message and the emotion that you intend to convey. Re-reading if we have to, but really just thinking about what we are writing, and (maybe) more importantly, thinking about who is reading and how it will be read. That's all I'm driving at :) Now give me a second to go back and re-read this before I hit post...