I was going to stay out of this discussion, but now I'm told that I'm not properly formatting my emails!
What nonsense. I have no control over how emails are formatted once they get to someone else's system--the receiver can control that. All of my settings are set to default. When my emails come back to me, they look the same as when I sent them--normal, short paragraph style.
I also, just to be sure, looked through a nettiquette book and could not find anything about 80 characters per line. Or even sentence length.
<end of rant>