As part of my Groundswell Friend Feed experiment I subscribe to each person that joins the room and add them to a FF list entitled: Groundswell Inbox. If they are good enough to join my FF room then I see this as an opportunity to subscribe to them to listen, learn and maybe participate in FF conversations. This feature request is meant to make it easier for me to keep track of who I've subscribe to and who I haven't. - B2B Specialist