Looked at my archive page today for the first time in a couple of weeks. There were almost 300 comments on the postings.
Every single one of them blog spam.
I enjoyed the "you need a new wordpress template" for my BlogEngine.NET site. Those were good. But I think my favorites were the ones that said "Beautiful! Amazing!" on posts that said things like "I had the worst day ever"; and the ones that said "you need to improve the look and usability of your site." That's right, encourage me to leave a post that insults me.
Anyway, I disabled comments on the site until I get a blog spam filter. Looks like Commenter is the one to use, so I'll be loading it and enabling it soon. 'Til then, sorry you can't comment. Not that anyone did.