This is scary thought. I am a facebook developer. We invest lot of time, sweat and money creating apps. If there is something not right, you contacting the the developer to give them some time fix the issues sounds reasonable. but pulling the plug is sure a scary thought. Everybody wants the users to have good experience. It is face books users. Not ours. While agreeing to that you need some balance. It's the apps made facebook what it is today.