I believe many come here after playing soldier,but they know not to say too much on where they come from.They know outside of europe or the west they are not liked by some.So how they behave in pai has the thais upset and they don,t want those kind of people there.The restaurants will serve anyone but cause problems you are not welcome.The russians down sth are they and money keeps them there and thais happy.Look at other parts of the world and you see the same issues there