Since comment notifications were added to Ratburger.org on 2018-02-20, the rule has been that when a new comment is added to a post on the site (I refer here to main site posts, not items posted in groups, which are handled entirely differently), notifications are sent to the author of the post and to all other members who have commented on the post so far (excluding, of course, the author of the new comment). On 2018-06-10 this was revised slightly by allowing comments which contain just the text “follow” or “c4c” (an old-time bulletin board system abbreviation of “comment for comments”) to request notifications without actually appearing in the comments for the post or the “Recent Comments” box in the sidebar.
I have just revised this code so that in addition to the post author and other commenters, users who have “Liked” the post will also be notified of new comments. It is common for posts to have a large number of likes but only a few comments, and thus for new comments to be largely invisible unless a user happens to see them in the “Recent Comments” box. It seems to me that people who have liked a post will probably be interested in any comments it engenders, and that sending notifications to these people will increase engagement with the post and possibly stimulate additional comments.
If people find this change detrimental or annoying, it is easily removed.
Full details of the implementation will be included in tonight’s regular posting to the Updates Group.