Why unrated? It's a little meaningless.
I've started playing CC:)

Welcome to the wonderful world of correspondence chess, where mouseslips are known as clerical errors

lol, another fine waste of bandwidth. curious, how old are ya, checkmate? early teens?
What's on my profile is what I tell people, and age is not on my profile.

If you want to play better, play rated. On the other hand, if you want to avoid people who have some idea of how to play, unrated may be for you. Another advantage of only playing unrated is that it may allow you to believe that other people think you are a better player than you are (although in truth they will think are a beginner or rather weak if you haven't played any rated games).
To let you all know, I play unrated CC games now.