This User Story needs to be clarified. I think Pavlik elf was trying to capture that not all posts need to be made to the stream/wall of a user. Some comments may be private (only viewable by a specific person/people) and some comments might be public but not published to a wall. — Ben Roberts (talk) 05:00, 19 February 2015 (UTC)
original story: https://www.w3.org/wiki/Socialwg/Social_API/User_stories#Reply_in_a_discussion
@dissolve we can use those two examples
i can write new story to capture b-day surprise party with shared preparation thread people post to