Comments are encouraged for members of the class and the general public too. If you'd like to identify yourself with your comment, the Comment Tool offers a variety of ways of doing that. Members of the Econ 490 class are encouraged to comment with "Anonymous" and then sign their post at the bottom with their assigned alias.
Comments will not be blocked because they disagree with what I have to say or what students in the class have to say. Someone, however, needs to determine whether there is a legitimate reason to block the comment. That someone is me. I will try my best at this. But I'm human and might very well make an error in judgment. If you believe that is the case, please contact me and we'll try to resolve the manner in a civilized way.