Kier made an example add-on to do this, but he only did it for a video. It seems unlikely that he will be excited about supporting it:
I think it's a terrific addon, though, and have it running on my site. I don't really care about post-permissions, as we don't use those much. I like that the addon itself is extremely simple. It would, of course, be most helpful in a small site.
Would anyone be willing to update it to a version that has a separate page for the threads with the most likes? (or a page of threads with the most likes in the first 50 posts?) I'd be willing to pay a modest amount. Hopefully it wouldn't involve much more than some SQL. I'd do it myself, but I don't know SQL or the internal workings of XF and anything MVC freaks me out even though it shouldn't. I'm a bit of a noob.
Just to be clear, there would be two URLs, like:
and they would highlight the best threads and posts site wide.
If anyone was up for the coding, I'd be happy to contact Kier and ask for permission to write code similar to his or to start with his. I can't imagine he would mind, but if he does, it would, of course, be off.