This might seem useful here given the high amount of activity. That's really my only reason. Not sure if others have ever used this plugin, I have and it is wonderful. Basically, an icon is added to the lower right of all posts. You click it and it will take straight to a Private message with the username (author of said post) and the post quoted, and the title of the PM matches the thread title. It gives a great reference for the communication, especially if time has gone by. Quote Post in PM - vBulletin.org Forum It's a convenience factor. Thanks for your consideration.
We already have this implemented: click the user's username in a post, then choose "Quote this Post in a PM to [username]"