I was doing some investigation, and apparently there are actually people paid (in third-world countries) to help bots get through website security. (Reference: http://en.wikipedia.org/wiki/Captcha#Human_solvers
Admittedly, it's Wikipedia, but still...) Don't know if that's what happened, but... well, most people don't have a link to an ad as their sig. Nor do they make incredibly vague, badly written comments that could apply to any discussion on a random thread as their first post.
"It has been said that we each must pay a price to know our god. I would say that the price we pay determines which god we know. The man who spends his time and money on vices comes to know his god, Pleasure. Likewise, the man who pays his will to his temper knows well the god of Anger."