[yazaddaruvala]

I hate physical metaphors for digital things. They always seem so succinct, and without possible counter argument.

You're absolutely right that if this happened in someone's living room, their rules should apply.

However, there are 1.3 billion people in "Mark's living room". Is it still his?

[palerdot]

Unfortunately it is still his. When people sign up, there is a line hidden somewhere that says "This is my living room and you agree you stay here on the condition that you will agree to whatever I might ask you in future".

In a way, some physical metaphor like this one drives the point home well. Though Mark might not say bluntly that "You are in my living room, just adhere to what I order you", he is actually saying something like "I'm not permitting this in my living room because it is an inconvenience to other people".

The ugly truth is 1.3 billion people are guests and no matter how big they are they have to agree with the host.