Ability to schedule send a comment, as is currently possible with emails. Linked to internal task management use case - allowing an admin to plan ahead and schedule the notification in a timely manner.
Add a sent folder for comments left in conversations, so we can see in chronological order what our last comments were, to easily go back to conversations we're working on.
Comments build up quickly, and then it gets difficult to dig through a wall of grey comment boxes. This would introduce the ability to have comments that are threaded together.
Pinned comments are displayed with the small grey icon in the P3 header and in the timeline but look like normal comments. It would be useful if they stood out more.