atm, the xhb participants list (that is only displayed for host and admins) disappears after 10 mins. for big battles and maybe late submissions happening after 10 minutes, its hard to keep track of participants and voters.
the participants list has the little green star icon which indicates if someone voted on all entries or not. this disappears after 10mins as well. i dont really see a reason why this could be useful. i think it would be better if the list is displayed until the battle is closed - at least for admins mayb