In all honesty, I planned this as a blog post on how ineffective automated spamming is. It’s unethical and annoying. It’s poorly targeted, rarely varies anchor text, and can’t get past a site that moderates comments (as all sites should). On top of that, Google recommends against it. In light of all these, it is amazing that anybody would even waste the time to set up a program to generate comment spam that would provide zero benefit.
To prove that auto-spam is a complete waste of effort, I went through a drew a random sample of 50 obviously automated spam comments that I have received to my personal blog over the past 6 months. I compared the sites that were being represented to the anchor text that the spam posts were trying to push and I then analyzed the rankings. The results were surprising, if not outright shocking. Some sites create and push this generic (and often offensive) spam…because it works.
Results (note: given the nature of many sites that spam, and the internet in general, some of the targeted anchor text is a bit risque, so please don’t click on the jump if that is something that you would prefer not to read):