Apparently, my website is now on some big 'SPAM-THESE-WEBSITES!' list, because over the last few days I've been getting comment spam. Not just 'more' comment spam, but comment spam, at all. I used to get none. Most of them still didn't come through because I have wordpress set up to automatically moderate comments with three urls or more in them. But still, deleting them all is very annoying.
Luckily, Wordpress comes with an anti-spam plugin that I have now enabled. It sends all comments to a central server that checks them for spamminess and returns a 'good to go' or 'low-life spammer' rating. The only downside is that you need a wordpress.com account for it, which means you get a wordpress.com blog (wordpress.com: boo! fix!). At least it doesn't require any action on the commenting-side, like those annoying 'type the characters in this image' things.
Ugh.