We had ~20 Chit Chat threads which were very popular and which were seperated via an addon automatic after 5000 replies.
If somebody posted the 5000. reply, the plugin
closed the thread,
createad a new thread with a link to the old one,
took the last 5 posts from the old thread and moved them...
No, the needed templates doesn't exist as admin templates (e.g. quote,bb_code_XXXX)
It's also commented in XenForo_ViewAdmin_Feed_Preview
// don't pass a view to this, because the templates don't exist in the admin
$bbCodeParser = new...