Before setting up this Word Press website I was only mildly aware of Comment Spam. I’m sure you’ve seen them, a comment on a non-moderated site that has a URL and a weird generic but slightly out context comment. I’ve been getting several a day. They must be a search engine game, attempting to build links and thereby improve ranking. What a pain, but they do point out that when ever I post anything I should include a link here.
Just a thought.