So... erm... It seems we haven't quite got the hang of posting in this community yet, so I thought I'd write this to try to stimulate some activity. The trouble is, I can't think of anything in particular that's worth writing here at the moment.
So I'll just say that the way you post one of these (since it isn't very clear just from looking at the main page) is to log in to your journal as normal and write a post, but then change the "Journal to Post in" option under the Event field to "retiringroom".
So yeah, just treat it like a message board I guess, with each post on the main page being like a thread, and the comments being follow-up posts.