it's an old spell actually. Before Wave of Conflict, people were autojoined into EE - the VoE spell was used to opt out.
^ They scrapped it as it caused too many iNacs in wars. Peeps were signing up with like 20 iNacs every time
VoE ... Wow thats old now. Devs previous system was that the whole clan warred unless you opted out of war instead of opt-in.