Word verification for comments

Just disallowing anonymous comments doesn't seem to be enough anymore. Now there are bots with accounts clogging our blogs. Well, Blogger's got an answer to that, too: turning on word verification for comments. It's a minor inconvenience to commenters, but will save us from having to delete the inconsiderate ad-crap some people are loading on our backs. I don't care if someone wants to advertize, but not in my notebook.