The plugin adds the ability for an admin (and/or moderator) to update the timestamp to 'a moment ago' when moving a thread.
When a thread is moved (thread tools > move thread [you get an overlay]) it shows a checkbox with [update timestamp?].
I hereby invite you to give this a try on your board. This is the version I currently run live on XenFans.com
Just upload the files, import the .xml and go through the settings.
Known Issues: admin should be selected by default, it might be possible it's not doing this (yet).
This is coded on and made for xenforo 1.1.0 beta 4, no other versions (including 1.0) have been tested.
Looking for: Typing errors, broken links, settings that don't work, missing links / images, general or specific feedback, complaints, and suggestions.
It was intended to release this to only premium users, this won't be the case, it will be a free download to everybody.
If you're interested in helping test this release, give some feedback/suggestions, please let me know.