Text caching inside of rooms

Currently when using a room inside of complice the feature for text based chat exists.  If a person leaves the room and re-enters all previous  text is gone and the chat is tabula rasa.

I suggest that room text is cached from the time that a user enters the room until their 'end of day' time as set by complice.  At that time the cache could be wiped and the room is tabula rasa.  