I thought that the practice of content spamming had died. It's unethical, stupid and is done without much thought. On here I have verification for comments, the who ever spammed me had to do it manually. I love people adding comments and links to their own or other sites which help or add to the discussion. That's what blogs are all about as far as I'm concerned.
But just adding a list of keywords with links to your sites and no comments is just dumb. Needless to say I removed the comment spam. My site I'm sure doesn't have much clout but if you want to use whatever it has please do it constructively.