unexplained spam practices

Here is a list of spam titles I've received on my other blog. All of them linked to the same site (different pages)... all of them pr0n! Hooray!

california primary
delegate count
maharishi mahesh yogi
miss russia 2006
new mexico primary
shaq
transcendental meditation

I'm not entirely sure why anybody would do that. Why do they want to masquerade as a link to information about transcendental meditation. I mean, that's like advertising as "hardwood flooring" while attempting to pull in potential customers for "fat-free bacon." I think pr0n pretty much sells itself.