It is important for every user to make him or herself look good online. The user should prioritize correct grammar and spelling. It is good to share information which the user knows is correct. It is important that everyone contributes to keep flame wars under control. Users should respect privacy regardless of how accessible other users information is.
Some users have more knowledge and better software than others.
This power should not be abused. It is just as important to be forgiving of other users mistakes. As far as the impersonality of e-mail, there are a few cute ways to make it a little better. Emoticons are used to symbolize emotions. I have found great use of e-mail, far beyond entertainment and communication.