The reason why it isn't in high demand for Xenforo...is because there are other solutions for VB! Xenforo is still a baby... and many people are still just starting to adopt it. I'm sure if there was a quality addon/script like this for Xenforo...It would grow like crazy! I could easily switch back to VB or IPB, but XenForo has my heart lol.
Yes, other people would like to see this.. It's been asked for before