Remember, if you decide to post an image in a thread using an external url, proxy server logs at peoples' workplace will log it as if the user visited the web site. Please show some consideration when you post questionable external material in threads. It could get someone in hot water pretty easily when they load the thread to read and someone has some nasty avatar image link or something. Obviously it would take a real jerk to go hunting this info and then rat on somebody, but it is there for the right pissed off techie to use.
Though to be honest, you should be fired when they see the number of logged connections to this domain...