I'm thinking of a solution that would enable good content to remain visible (and actionable and improvable and trackable, also for its progress).

For example, on HN, discussions mostly end when posts leave the front page (and obviously, nothing really results from the good input, except a bit more awareness). A few hours later, a similar post appears and all the questions and answers come up again and some people get upset (probably also b/c they see it as a "political post").

In chats, good content gets lost, buried, etc, even more easily I'd say.

EDIT: "content" such as https://news.ycombinator.com/item?id=6153044 (but of course also the discussions themselves)