I tried doing something like this the other day:
I had a “conversation” on Twitter and wanted to pull it over to Discourse.
I guess there are 2 options I am thinking here which could be interesting.
Make the Twitter onebox more dynamic so you can “expand replies” like you do for Discourse.
Perhaps… a mode where you can embed “expanded” so the entire conversation is expanded nicely.
This is not super common so not something particularly urgent, but something to think about.