Does spam thrive during economic decline?

Are laid off IT workers discovering that sending spam is easier than getting a job these days? It sure seems that way, even with mollom running on all forms around a hundred spam comments get through every week, and they seem to get more clever every time. I just found the following comment below my review of the Drupal 6 Javascript and jQuery book:

Submitted by san diego real estate (not verified) on Wed, 10/21/2009 - 18:55.
The only reason why I like this book is that this book developers deep into the usage of jQuery in themes and modules and there is interesting stuff in there for developers of any experience.

I can understand mollom didn't get that message because even I thought it was a real comment. I was much surprised to see the comment was posted by "san diego real estate" and that the linked site wasn't even made with Drupal...