-* `comments_shown_pagespec`: pages where comments will be displayed inline,
- e.g. `blog/*` or `!*/discussion`.
-* `comments_open_pagespec`: pages where new comments can be posted, e.g.
- `blog/* and created_after(close_old_comments)` or `!*/discussion`
+* `comments_pagespec`: [[ikiwiki/PageSpec]] of pages where comments are
+ allowed. The default is not to allow comments on any pages. To allow
+ comments to all posts to a blog, you could use
+ `blog/posts/* and !*/Discussion`.
+* `comments_closed_pagespec`: [[ikiwiki/PageSpec]] of pages where
+ posting of new comments is closed, but any existing comments will still
+ be displayed. Often you will list a set of individual pages here.
+ For example: `blog/controversial or blog/flamewar`