The Discourse plugin we have installed in Slack facilitates this, but it’s not really helpful. Here are a couple examples of Discourse threads that spun out from Slack convos:
I think what’s important for these to be successful is that someone take ownership of creating a quality topic that sums up the Slack conversation, rather than just pasting a transcript. Slack is scattered thinking and chatting, and just pasting that into Discourse doesn’t turn it into discoverable+digestable knowledge. Of the above, I think the first is a poor example and the second two are better examples. It’s kind of akin to “reporting out” from a group brainstorming session