Sure, you can make a request, and most people will respect it. But you can't make it as a demand. If I want to tweet "I was out partying with pessimizer last ni

Sure, you can make a request, and most people will respect it. But you can't make it as a demand. If I want to tweet "I was out partying with pessimizer last night" there is no reasonable way (short of libel laws) to stop me.