I believe this would be like your "wall" on Facebook. Main difference in use here on CC is that people seem to be posting on their own walls in order to have wide, on-going conversations involving multiple people. On Facebook your wall is normally used just for other people to write on (and then you go and respond on their wall--so it's one-sided). I like the way people are using it here. It's a bit confusing but sort of nice. I wish you could click on someone's name to get to their little page though instead of seeing a87, but I'm assuming that will be worked out.