Scott recently added CAPTCHA to pingpoet blogs to reduce comment spam. However, today I noticed that I got a ton of Pingback spam. My guess is that some automated tool is subscribed to my feed and it automatically creates pingbacks to all my posts. Took me forever to delete all the SPAM entries. .Text delete operation is the worst I've seen, it does not allow multiple selection and requires two confirmations, that's three page refreshes to delete a single entry.