Since 11th April 2003, says the user info.
2. What do you consider to be the main purpose of your LiveJournal/blog?
Just posting about my life and whatever I am doing.
3. If you could change something about your personal blogging style, what would it be?
More actual content.
4. What are your criteria for adding someone to your friends list/blog roll?
Interesting person or posts, or if I personally know them.
5. Name one thing that you've never before written about in your LJ/blog.
I don't think there's been anything I haven't written about at least once. I might be wrong, though.