Maybe we just need a way of dropping the gabby kibs for the session. Say, highlight then Control minus to drop them for the current session. That way you can keep your mates, even if they are gabby, and get rid of the mildly obnoxious. And you don't need to create enemies or stop Kib chat. Whilst expecting people to be responsible and courteous there are always who aren't that sensitive. The effect would disappear at logoff.