It seems we no longer are able to easily catch up on threads where we responded, except when there is a direct reply to our own comment on that thread. Others can post later responses, but there is no notification, nor an easy way to see just those threads I have posted in that have been updated by others. Many forums either automatically, or via a small button, take you to the first new post after the last one you read at last visit.

Scrolling the "Newest" topics returns all of the threads I have no interest in, but were updated, forcing me to scroll multiple pages to find a particular one that I commented on previous.