Over the years, Yuletide has spawned its own small fandom. There are a few participants every year who enjoy requesting or offering fics in this fandom.
Sometimes participants will offer or request fanfiction based on the chatroom. In such a case, someone will create an opt-in post in the livejournal asking chatroom users for permission to use them in any such fics. Often, someone will take the iniative to save all the chatroom transcripts leading up to Yuletide so anyone writing Yuletide RPF will have access to them.