Part of the registration process requires you to enter letters from an image, known as a
CAPTCHA and to answer a simple question. This is a precaution to ensure that the response is generated by a person, not an automated process. Note that the text you type is
not case-sensitive.
In addition, there is a CAPTCHA requirement while making the first few posts; this is removed automatically after these have been made.
Sorry if these are inconvenient, but unfortunately there are a lot of bad-guys out there