We've made some code updates here to make the comments work a little better, and we've been laying the groundwork to bring ajaxify the story posting on DailyKos. Unfortunately, some of the changes have made the site incompatible with a small number of browsers. If you get a message like "Tag < > must be closed.", try upgrading your browser. If you have formkey errors posting stories, those errors should only be temporary. Try hitting the "submit" button again, and it should go away. It'll definitely be cleared up when the new code rolls out.