Sorry but I think that any guild that shared the same name with another and transferred to the server the original guild is on, should have been forced to change their names. This @ (Server origin) name is ridiculous and idiotic. Force the other guild who came over from a different server to change their name. It's been like that for other games, should be for this one too. it cuts down annoyance and confusion. Last thing I want is some raging jackhat to misrepresent a guild they're not associated with simply because they share the same guild name but are from a different server.
Seeing <Happy Ponies @ the server1> and <Happy ponies @ Server 2> is going to cause a ton of confusion. Server 2 should be forced to name change. No ifs ands or buts.