We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
The integrated chat room has been added. Generally usability and general system cohesion is improved a lot since this idea came up and the pin idea will cause more confusion than it'll help.
http://www.readwriteweb.com/archives/10_chat_widgets.php