@julian Now that our server's federation issues have been resolved, I've finally had the chance to fully appreciate the new crossposting feature. It's an excellent feature that provides a great user experience for my forum users.
I should add that this feature also solves at least one of the problems that arose from the inability to move threads to remote categories. If I accidentally moved threads from a remote category to a local one, I couldn't restore the status quo. Today, however, this problem doesn't arise, because the thread remains (also) in its original category.
So, first of all, I'm wondering if you'd reevaluate my observations and arguments in favor of restoring the feature that allowed a thread to be assigned (at least at the local forum level) to a remote community. And, since the new crossposting feature is better suited to this purpose, if you think it's possible to direct crossposting (rather than moving) to remote categories as well.