I'll finish up with a few things, Yes, anyone who plays on somebody elses server is a guest, but from where i come from guests are treated with the highest ammount of respect and hospitality, something RO mod has sometimes failed at over the past, the "casual" gamer was never given a reasonable chance, with different servers run by different clans with different rules, only clanners could totally grasp whats okay with the admins and whats going to get you banned, it's nearly religiously enforced "Play how we want you to or i'll kick/ban you"
No way to treat a guest, and now it's even more important to consider other peoples different playing styles as they'll have paid their good money to play it. Don't make it a negative experience for them, let them have fun in their own way, it rarely effects your enjoyment of the game.