I used to be a member of another forum, it had the option of doing a private journal. Originally it was something any other member could read, but only the original poster could comment. It was a pretty good way of just getting thoughts out without having to worry about what other people thought.

A while later the same website had the same feature except the same journals were conpletely private. Only the original poster could see it. I quite liked that idea.
I struggle with privCy issues so this was kind of perfect for me.