For some reason, caused by either WordPress or an associated plugin, comment sections are closed for all the current and new posts, as far as I can tell. The ultimate solution may require a bit of work. But for the moment, if you write a post or want to comment on a post, do this to turn on the comments:

1. Log in.
2. Go to the RLR blog dashboard (dial icon, top left of screen).
3. Click on Posts/All Posts on left-side panel.
4. Find the slug of the post you are interested in. Click the “Quick Edit” link under the post’s title.
5. Click the box “Allow comments”. Comments should now be turned on, go to post and comment at will.

If anyone feels inclined to come up with a universal or permanent solution, this might be a place to start.