User blog comment:Cristina7/Introducing Discussions, a New Platform For Engaging Your Community/@comment-6100947-20160909050435/@comment-452-20160909142314

"The question is, can it be done and to what degree..."

Yes, it can be done, the degree depends on whether you care about the page history accurately attributing the revisions.

If I was just doing this for myself, I would normally export it, and run it through a short PHP script to reformat it, but I think in this case I'll do it in javascript, and share the script with everyone.

With javascript, I've already written a script which retrieves the internal page name from the thread ID, I'll be expanding that to also retrieve all thread replies, and to reformat the entire thread into single forum post with signed comments.

I'll personally be importing that data as correctly attributed revisions, but I'll also provide a copy/paste version for people who don't care about that sort of thing.
 * Whether correctly attributing revisions via page history is technically/legally required is unknown, as Wikia refuses to answer the question as it constitutes "legal advice". To be safe, I'd use "This forum thread was previously located at Thread:1234" at a minimum.

(I have no ETA on this, I'll do it sometime in the next month and post it on the forum here as a blog post)

edit: I'm going to have to get clever to maintain history of comment edits, but I think I can handle it.