Thanks for the kind words, everyone.
Just a quick update:
I took a preliminary look into importing the old forum content. Apparently, it may be a bit easier than I'd assumed. So there's a possibility we'll regain access to the old forum posts. No promises though, since I haven't actually attempted the data import yet and I may run into unforeseen issues. Also, any attempted data migration will need to wait another week or so, when I have more time.
But just wanted to update everyone that I'm looking into it.