What is TypePad doing about spam?
We’ve invested a great deal of time and energy fighting comment and TrackBack spam on TypePad. Most of that investment has been invisible to our customers, and involves a combination of science and art to (a) detect spam attacks, (b) block as much spam as possible from reaching your blog, and (c) retroactively clean up any spam from your blogs after an attack. TypePad was the first hosted weblogging service to support the nofollow initiative, which helps eliminate one of the key incentives for comment spammers. For more information, see Fighting Comment Spam at Everything TypePad!