I can't believe how much spam I get through this website. So I just shut off the comment forms. Apparently there are a lot of people in this world who feel that the best way to marget their garbage to others is to spam websites and post links in comments; because then their PageRank(tm) at Google might go up.
These people are likely the very same people who cut you off while crossing 5 lanes of traffic because they are going to miss their exit. They are likely the very same people who use the 10 items or less lane at the grocery store for an entire shopping cart full of food. They are also very likely the same people who keep stealing everyone's pens.
But I bet they are making a killing selling their blog spam software!