It's annoying to find context in the comment section for mods and there isn't really a way to easily link to specific comments. The comments do have an ID each, which can be found with inspect element, but it's pretty annoying. A permalink button/link would be a great help to link other people
The link to a comment is used by the notification system and recent comments anyways (context), just exposing this would help a lot!
Taking this a little but further, - maybe the reply button could also add a link to the replied-to post. Like this, maybe?