I had this in rules since day one:
It is the first edition since a very long time. Some rules may need some tuning. If something's really broken, I reserve my right to change rules during the season.
And now I'm adding this:
Everyone is free to choose which country/region he wishes to represent, but you should try to choose a team to which you have some link in real life.
The organiser can decline signing up your team or individual players in your team if he decides you could hurt this competition in any way.
I'm not signing up team San Marino nor team China, no need to PM me about it again.