It seems that our recently added single sign in confuses some of the users and they mistakenly post questions to their own blogs instead of the discussion groups. We are going to do some changes to the sign in pages today and hopefully it will resolve the issue.
Also some of the users reported that they get an error message when they click the "My Feeds" node in their RSS reader. I believe it will be fixed in a few hours.
Please let us know if you have suggestions on how to make our website more convenient and useful for you.