I've added the feature to the feature request list, and I'll see if there is an optional add-on from vBulletin to do this.
I'll get the details for that shortlyAlso, previously we could subscribe to new posts and new threads via RSS. Now it doesn't work.
The RSS feed lists new articles on basenotes.net and nothing to do with forum threads.
I actually brought this up a couple of years ago and you instantly resolved.