To be honest, you don't really have to register to use most of the features on this site.
We know your sick of giving out your email, to sites that say 'trust us', only to be spammed a day afterwards. So we have designed this site with your privacy in mind, and try not to ask for any informatin about you if we can help it.
Saying that, we have restricted certain operations which can easily be abused by spam-robots, or where we need to have a way of contacting you if we have questions, and if you do register, we have made life a bit easier for you by disabling some of the spam protection, and not forcing you to re-enter you name all the time.
So.. have a look around, don't register yet.. If you find yourself coming back often, and are getting sick of the captcha's .. register then. We recommend using OpenID, a decentralized identity system, to store your personal information on and use it on multiple sites. It's kind of like Microsoft Passport.