I am assisting a friend by admining a website for his podcast (http://www.castlereport.us). I've had a little bit of experience with WordPress, but have no coding and customization skills. Only my friend and I have user accounts. His wife uses his account to post the new podcast episodes for him and I only log in to do occasional maintenance.
I have the discussion settings set to allow people to comment without moderation and to not require users to be registered or logged in to comment. However, the system appears to recognize my email address and my friend's as being associated with a user account and it holds our comments for moderation until I log in and approve them. All other comments are automatically posted as should be. It would be really nice if my friend's replies to comments were also posted automatically.
Below is a screen shot of my discussion settings. I've sat and stared at that page over and over again trying to figure out how to let my friend's comments be posted without moderation and without having to be logged in, but it seems to be escaping me. I have the same situation on another website, so it's not just a fluke.