What is a CAPTCHA?
A CAPTCHA is a type of challenge-response test used in computing to determine whether the user is human.
In this case the form that you are filling out contains a CAPTCHATM that you (the user) need to complete before being able to submit this form.
By asking you to complete the word founding the image we can make sure that you are a human user rather than a computer program such as a spam robot.
We apologize for the inconvenience when completing the but hope that you will appreciate we are reducing the ability of such computer programs to generate spam content.
Why is Captcha Required?
Increasing some computer programs crawl the Internet trying to exploit web sites that allow the submission of posts containing obscene material or advertisements. By displaying the required word as an image, we are making it much harder for such programs to generate spam because they have difficulty reading the word.
To Learn More
If you are interested in learning more about CAPTCHA, I would recommend this Wikipedia article about CAPTCHA
"CAPTCHA" is an acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart" trademarked by Carnegie Mellon University.