By popular demand we just launched a new Campfire feature. Anyone with Admin access can now kick a guest out of a room.
Hovering over a guest’s name in the “Who’s here” sidebar will reveal a red “Kick” link. Clicking that will boot the guest out of the room. It’s not a “ban” — they can enter the room again — but at least you have some control over rowdy guests.
We hope you find it useful.