I am sorry to anyone who has been posting comments on this site. I do not know what happened but somehow my user that is supposed to write to the database lost those permissions. I realized it one day when I was trying to figure out why I was getting all of these email messages that were empty, but asking me to moderate the comment. I also was unable to post messages here on the site. It should be working now. And if you still need to update your rss feed, you can find the new one at the bottom of the page.