If you don't mind Recent Changes listing your full IP address, you can now edit pages without logging in. You will be asked to solve a simple math CAPTCHA when you try to save the page, though. The CAPTCHA is also presented to new users who want to create an account, if your login details are repeatedly incorrect (to prevent a scripted attack on user account passwords) or whenever you want to create or edit pages until you confirm your email address.
I'm currently looking for a way to only have it ask registered users for a CAPTCHA if they add links to external sites. After all, those users already completed a CAPTCHA when they created their account.
I'm currently looking for a way to only have it ask registered users for a CAPTCHA if they add links to external sites. After all, those users already completed a CAPTCHA when they created their account.