More interesting angle to your question, maybe why asked, is to "reimagine forums" in our new age of social networking.
Yesterday I had a discussion about https://blocks.githubnext.com "Reimagine repositories". Great ideation starting point. What is a repository actually? Container of a solution? Or .. what?
Maybe a forum is single-person software, attached to the social graph of the social web? Tapping into activity streams and knowledge bases. To 'slice' our personalized community views?
@smallcircles@social.coop personally, I feel that asking people to post or continue a discussion on another platform is a roadblock that shouldn't need to exist.
You can't do it on Discourse, but in NodeBB you can "categorize" a topic, even if it came from the microblog-fedi. Similarly to how you can import a reply tree into another Mastodon instance. That's the difference, that the software should support something like this, although I get that that's not always important to every piece of software. Discourse does technically support two-way federation, replies are sent and received, but it primarily broadcasts content. You can't currently browse fedi from Discourse.
Things get a little more confusing if a topic is already categorized, like a Lemmy/Piefed post in a community, so I expect some of that to change in the coming months.
End of the day it would look something like "cross-posting" as currently exists on the threadiverse.
If you have a fediverse account, you can quote this note from your own instance. Search https://community.nodebb.org/post/104382 on your instance and quote it. (Note that quoting is not supported in Mastodon.)
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