For the time being, I've been forced to disable HTML code in the comments section. Spammers have figured out how to defeat MT Blacklist, the only easy way I have to remove spam.
I'm working on a fix, but in the meantime. . . comments just won't be as fun as they used to be.
UPDATE: Thanks to Web Goddess Stacy Tabb, the problem is solved. HTML is switched back on - for the time being. I'll know more tomorrow. Now if you'll excuse me, I have some Christmas shopping to do.