Even that unignore has an one hour cool down is wierd. Besides that I aggree on the suggestion because sometimes you don't want to ignore someone, just remove them from the room. What's so hard to grasp on the concept? I also see some use cases for games. If you fear discussions about the kick you can just tell the person kicked that "The room has been closed". Ignore is just too harsh for some situations. Every chat system I know has kick and ban for that reason.