I have revealed who I am many times on this site. I think the way Fungo describes himself speaks for me to in that it's "my style". There are many people on this board that I consider very good friends and who have touched my life in many ways. I've met quite a few. None of those friendships would have happened or blossomed if I was anonymous. I enjoy and appreciate knowing a more personal side to posters.
On the other hand, a person wishing to be anonymous doesn't disturb me as much as it does some posters. I realize people have many reasons they wish not to share more personal information. Some don't share a lot of themselves in real life... that's just who they are. Unless someone is hiding behind a mask to do damage to the site or others, more power to them.