Title: Form your own personal message groups
Summary:
Say you and six people in your realm want to raid some rurals in Realm XYZ. It would be super helpful if you could create a group in your contacts for quick messaging. It is a pain to have to go to your contacts and find all the people you want to message if you are repeatedly messaging them.
Details: The way I envision it, if you have someone as a contact, you can go ahead and create and new group, name it, and add them. Then, when you want to message all those people, you can just click on that message group.
Benefits:
1. Saves time
2. Increases organizational abilities
Downsides or Exploits: I really can't think of any. It is really just a player tool, not a game feature.