I've seen a couple unanswered queries wondering what happened to the permalink that allows linking to a specific post within a discussion. I thought I'd post here for more visibility.
The linking function is accessed via the timestamp of the specific post, as shown in the photo. This has been in place for the mobile version of the site and now is part of the desktop format. It has been the web standard for several years in social media, blogs, commenting systems, to name a few examples.