. I think here is the right place to do so though. What i mean is not a wall, not a marker, just a simple line that u can really see, but you can see on the mine craft junkie server map 
. you see it can be helpful i know that "Siberia" is a large economic power with its players, factions, and spawns. Why don't you ,the admins, create a border type res or something? Siberia could use it and so can i use it for my Empire please 
. one last thing it be very useful for me because i don't like people coming to my island camping my house 
.Andrew........
