This site has been getting attacked pretty badly by spam bots in the past, so nearly a year ago I turned off the ability for anyone to add comments.
Good news people, I have turned comments back on. Unfortunately now there is a Re-Captcha test that you must pass to prove you are human each time you post a new comment. It may be a kind of a pain in the you-know-what, but it makes it nearly impossible for the robots to post spam.
This is only an example.
