This is one of our associated blogs which still has a working comments app. It is possible to make responses here to posts of another of other associated blogs of ours. Do make sure to mention the title of the post and name of the blog your "comments" refer to. I am very sorry not to be able to find a solution to our loss of comment apps on some of our other blogs.
I am grateful that we still have a comments application here for your use! Please feel free to use it for our associated sites which no longer have that app.
Richard