If you have ordered something online or posted a comment to a blog, you have seen captcha. It was originally developed as a method prevent robots from automatically submitting forms on a Web site by requiring a person to visually view text in an image and enter its value in the form, something a robot should not be able to do.
Where it has a noble purpose to prevent bogus information going to a Web site owner, it is a roadblock to someone who is visually impaired using a form. And as you can see from the example I grabbed from a Chicago-based Web site, it can be hard for those who do not have any visual impediments to decipher.
I made a decision to not use captcha on The Hot Iron or on Dunkirk Systems’ Web site. I do have logic in the forms to try to thwart bogus submissions, but they still get through. Comment moderation is enabled on this blog, requiring me to approve a message. Where this slows down legitimate comments from going live, not to mention more work on my part, it provides a better user experience for you the reader. This I value more than deleting a few offers for pills and watches.
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