After a break on the forums here, I found myself searching/browsing all kinds of old discussions and other content overhere. To keep up what has been posted and to find back what others and myself supported/contributed to at the time.
Being in this situation, I realize even more -in practice- that added functionality to manage (categorize/label/search) information would be very welcome in Xenforo. Like with this great suggestion of Disjunto, it comes in handy on so much sites and Xenforo.com itself is a good practical example of that. Because on this community the process of showing that you would like to see a feature in the software, is by [Liking] the first posting of a suggestion thread.
So, being able to search the stuff you actually liked definitely comes in handy. We can already [Sort] the threadoverview by First Message Likes, but added [Search] functionality is welcome.