I keep seeing this here, and I wanted to ask: Where is the line drawn? At what point does the way someone wants to play the game no longer become acceptable and they have to play the way someone else wants them to play? This isn't necessarily pointed directly at you -- think of it as a gimbaled question rather than a fixed mount. =)
My instinct is to say that this point is reached when one person's choices are reduced to one in number. When one person has no option but to submit to the will of another.
If I am a trader, for example, and some people start blockading one of my favourite systems I have choices.
I can ignore them and hope they don't interdict me.
I can let them interdict me and try to escape.
I can tool up and fight for the system.
I can change my route to avoid the system.
I can pay some people to fight for me.
I have options.
If, on the other hand, somebody was following me to every system and repeatedly destroying me with a fleet of friends until I had only a starter Sidewinder and certain death upon launch, then I have no options. I can't even pay people to fight for me as attrition has exhausted my reserves.
A clumsy example, I will admit, but my point is it is all about options. In a multiplayer game it's not over if you still have moves you can make.