I understand the thought process, and I appreciate the creativity. But because it's designed to get people out of their comfort zone, that means they will be unfamiliar with the threads, and might not even know they exist. Or they may have forgotten they exist. For example; yesterday's limerick had me search up cafe, because of the mention of a plate, and I went into a thread that I had posted in long ago, but forgot about since then, which was Mika's hangout. I enjoyed the nostalgia, but I did not find the item. But even without that, if you make a limerick about a certain conversation, and someone isn't aware of the thread, let alone the conversation, it becomes nearly impossible to figure out, which could lead to a lot of frustration, and disheartened people.
I'm not trying to criticize, and I absolutely love this event, I just don't want people to start hating the event because it's nearly impossible for them to do. I love this site, and I would hate for people to start disliking it, and losing the feelings I have, and want to share, for this site, and it's community.