Before I begin stating my suggestions for the guild feature I would also like to suggest an advanced search feature for the forums. I searched for other topics that may share the same ideas as my own and found that the search covered all of the subforums rather than just the Suggestions forum which I found to be rather aggravating. You could also have the option to search through the posts of a topic or just the Topic Subject to make searching even easier.

Now I want to start off by saying that when I created my own guild I was rather disappointed with the lack of depth the feature provided compared to many other MMO games.

My suggestions could make guilds much more enjoyable and useful.

• Guild Vault or Warehouse
  A storage system that members can use to deposit items and possibly crowns to be shared by other members.
• Guild nicknames or custom Guild Ranks
  A title that can be chosen by the members to label themselves as they please. This would show up under their guild name for other players to see. I was extremely disappointed when I found that both of the guild names I wanted were taken and this could be a way for other users with this problem to still label their character the way they want.
  So for example:
  player name
  (guild name)
  [guild rank/nickname]
  These nicknames should be anything of the players choosing (obviously excluding vulgarities)
• Vendor(s) added to the guild hall and possibly elevators
  I noticed how empty my guild hall was save for the lonely transmutation machine. It needs something more to really liven it up and make it a place where players would actually want to go. The elevators could just be duplicates of the 4 open ones in Haven. You may also consider adding a way for the guild master to customize the appearance of the guild hall. You could have several different styles available and have special features of styles that are locked until the guild meets certain requirements such as winning 5 games of guild vs guild lockdown.
• Guild Announcements
  My idea for this could be a large computer monitor right as you walk into the guild. The guild leader and higher members can post guild announcements on this board which can either be read by checking the board itself or when an announcement is made it can be sent to all members in the more of a whisper in the chat window.
• take out the 1/1 next to guild in the social dropdown
  It's somewhat misleading and could cause some players to wonder if they can join more than one guild.
• Guild Missions
  Missions that can only be accessed by joining a guild. These could include special or new bosses and slightly elevated drop rates for items. Doing this may be a bit difficult with the tier system. Maybe you could have it set up just like the regular missions except with much fewer missions and on a completely separate tab.

I hope you consider some of my suggestions and thank you for taking the time to read them.