I'd like to see the chats be destroyed after a given period of time. People change, but their chats online don't. That's the current problem. -- also chats can

I'd like to see the chats be destroyed after a given period of time. People change, but their chats online don't. That's the current problem. -- also chats can't be logged by search engine, so either blank out, or use robots.txt (ideally both)