Comment spam is a fact of life if you run a blog. It typically takes on a few common aspects.
Comment spammers are looking for unmoderated blogs so that they can post a whole bunch of random off-topic comments that contain links to whatever they are spamming about. This blog is moderated, so what happens is I get a bunch of spam comments in-between the few real reader comments. I approve the real reader comments, and then delete the spam comments in a batch whenever my lazy ass gets around to it.
Usually, once a particular comment spammer figures out that they can’t get anything through, they give up after a while. Most recently, there’s a content spammer who really wants to sell me or you a business loan, and they don’t seem to take no for an answer.
Since this doesn’t really cause a lot of overhead for my lazy ass, I will continue to delete them at my leisure. But, I won’t be trying to get a business loan from them.