Who posted modification request
 

With my older version of vBulletin I had a hack that when you clicked on the replies in a thread another window would popup and list all the members that posted in the thread with the number of posts they have in that thread. I know this is part of 3.5.4 but the version I had also had a link associated with the number of posts that would just display the posts of that person in the thread.

Let's say you click on the number of replies link, the popup shows up with the members listed with their associated post count in that thread. You can then click on the number and you are taken to the thread but only shown those posts that are from that member. The rest do not show up.

Thanks,
Parker