I was pretty worried about posting, commenting in the CB, etc. when I initially joined this site and it all came down to two concerns
1. Looking like an idiot
2. Loosing what few XP I had
I finally decided to dive in after more than a year of lurking when I realized that I would never do anything about #1 unless I asked questions and learned from my mistakes, and #2 didn't matter.
I have since learned that the CB is a hoot. Crazy and cool stuff happens there...like the time Limic~Region threw off his robes and ran around, or when Mr. Muskrat tells another of his terrible jokes.. and I would have never had the chance to meet other monks like merlynin person if I hadn't had the nerve to post in the CB.
Of course, there are always going to be a few jerks who may end up bashing you, but for the most part everyone here is pretty cool so it is easy to shrug off the flames and move on to more important things.
So, welcome...feel free to jump in, the water is just fine.