It’s lacking- it should be updated monthly by lots of people, so all you ever have to do when someone asks about an inside joke is link to that page.
That’s Opal’s department – as it’s her website – and you need to take it up with her.
TubaDiva
To expand on what Tuba said, that site is run by OpalCat, a formerly very prolific poster who isn’t around much anymore. She runs that site totally on her own and it is not officially affiliated with the SDMB or the Reader. Send Opal an email and she may let you do the update yourself.
Okay, next time I see her I’ll say hi :D.