This blog has been getting a lot of spam in the form of fake new users. So I had to institute a captcha process to prevent bots from adding fake users to the blog. It’s not as annoying as a lot of captchas you see. It just asks for a simple math solution when you try to use a form on this site, like the login page. I apologize for the inconvenience.
I will probably be deleting a lot of the new users, if they seem fake. So if your account gets deleted by accident just re-register. Again, sorry for this but it was getting out of hand.