I don't think it's really all that related to specific servers. Every server has it's idiots. Just try not to let it get to you. After racing online for a while you start recognizing names, recognizing people who are nice and those who aren't.
You don't have to stop to let them pass anyway. Basically the lapper should determine when and where he wants to pass you. Ofcourse if you can make it easier for them that's fine, but it's actually much better if you don't deviate from normal racing lines much, certainly not in the middle of a corner. They have to pass you, you don't need to go out of your way to give them room. When they try to make a pass then it's just up to you to give them the room they need.
Just look around, try out other cars, other tracks. It's not much of an advice I guess, but I think it's the best way to go.