As many of our readers have noticed, we have been under a siege of spam comments recently. Typepad is working on the problem but we are also looking at things we can do to address the problem. We have thus far resisted a requirement that commenters sign in with Typepad. We also prefer not to implement moderation of all comments. One approach we'll take is to be more selective about which posts will be open to comments. Our more anondyne posts will thus function as announcements, rather than prompts.