Sometimes you write something on your weblog and you think the tone seems light-hearted and joshing. Then you re-read it a week later and discover, to your horror, that the tone is not light-hearted and joshing but could be seen as snooty and mean-spirited, which was not your intention at all. Then you explain to everyone that there should have been a winkie 😉 or a smiley 🙂 at the end of your post. Hopefully they all understand.