Yup, same here. Every time I post a reply I have second thoughts. After I've posted, I cringe when I see my screen name up there, because it makes me feel really exposed and vulnerable. I lurked here for about two years before getting up the nerve to interact, and I'm still not brave enough to start a topic. I'm always afraid of how stupid I sound when replying, that I'm going off-topic, that someone will say something mean or challenge my opinion, etc. Typical insecurities that are always nagging at me, even as I type now!