Sometimes I’ll make or read a comment and want to stay abreast of all the conversation beneath it, including replies to replies and so on. I can obviously manually switch on notifications for each reply as they come in, but an option to do that automatically would be great.
Originally I was going to suggest it just for comments the user posts, but actually being able to switch it on for any comment, in the same way we can for single level notifications now, would make tracking some discussions a lot easier.
I was thinking of a pair of actions to the three dot menu as it’s likely to be a less used feature so doesn’t need to be immediately accesible. One to enable following all replies, and one to disable. I’d make them separate, rather than a toggle, so you can force it on or off on all child comments.
When the user enables the flag, set it and the notify flag on that comment and all its existing children. When the user disables the flag, unset it and the notify flag on that comment and all it’s children. This allows the user to clear the notify flag on any child comments, even if notify all isn’t set.
When a reply is received to a comment with the flag set, set the flag and the notify flag on the new comment.