We set up a separate server with the LessWrong code and used it to test out the related question features that you now see. Since adding related questions is the kind of thing you can’t really try out on the live-server and the whole feature went through multiple iterations and schema changes while we were trying it out. We do this all the time to try out various features before we push them live, or before we decide to scrap them.
(Moved your comment to the top-level)
We set up a separate server with the LessWrong code and used it to test out the related question features that you now see. Since adding related questions is the kind of thing you can’t really try out on the live-server and the whole feature went through multiple iterations and schema changes while we were trying it out. We do this all the time to try out various features before we push them live, or before we decide to scrap them.