I am not blind, matter of fact, I see perfectly fine, but I was always having difficulty with the scrambled letters or the distant faded numbers captcha. I even recieved many complaints or recommendations to make joining simplier. After installing the sliding captcha, and making the join form into two separate phases, the complaints have ceased. Now combining the Human question and the captcha and requiring email confirmation, and blocking China, I do not need to worry about approving each membership. see more I do not allow non members to post anything and I have no spam. It has been 6 months and less then 5 human spammers have gain access. Andrew thank you for making the install simple, the joining process easier and adding to the safety of my site.