Right-click-chat-kick: Occasionally, users have something pre-typed and then combine a chat, press enter then leave straight away, too quick to kick out of the clan list. But if you right-click on the RS gold chat box message, then you'd have the option to block for 1-hour. Conclusion: The clan chat system is sufficient but with these upgrades and others' ideas as well, the clan chat system could be far more sophisticated.
Though it sounds like a rather good reorganization, I am somewhat confused as to how the kick log would get the job done. You state that both the personal and owner moderation logs would demonstrate the main reason for the kick, but just how would the log know what reason to place? The only way I notice that this could be done would be if the ranked member who OSRS buy gold did the kicking filled out the log manually, which means the reason could be faked. Still, it might be useful in cases where the chat owner and rated member's view of a crime differed, assuming they were equally honest.