From now on, all comments and trackbacks will be moderated, which means I will approve each and every one. In three years I have removed only a handful of comments due to extremely unjust remarks. today I counted 55 spam comments from same person by noon. Comment and Trackback moderation will keep the blog clean of Viagra and mortgage ads, at least for the time being. I will turn them back on as the spam-fighting technology improves. The only downside is your comments may take a few hours to show up which shouldn't be a problem for most people. Thanks for understanding.