A good thing that can be done in Discourse is to filter the replies in the topics according to their properties. For example, filtering replies including links, photos, videos, or files.
Also, if the ability to pin is added to the replay (which administrators and OP can turn it on), several messages can be pinned, below the header, it can be written that there are pinned messages in this topic.
This is my idea and I know that the Discourse team has much better ways to do this.