Let me see if I can explain why KORD is the airport of choice for the Poop Group host.

The computer that hosts the Poop Group Global Server is a remote un-manned windows computer running FSX at a major ISP.  The intent was for other players to populate and ATC other airports around the country/world. The hope was that players would spawn at KORD (in the middle of the USA) and fly into and out of a controlled airports somewhere else. Players not interested in being controlled tend to hang around the host airport and not communicate on the radio. These people just want to takeoff and land and never go exploring. If you are working another airport somewhere else this setup helps keep them out of your controlled airspace. You are encouraged to open and work any airport you like.