my karma means nothing

app/models/user.rb

@@ -73,14 +73,20 @@ class User < ActiveRecord::Base
   end
 
   def as_json(options = {})
-    h = super(:only => [
+    attrs = [
       :username,
       :created_at,
       :is_admin,
       :is_moderator,
-      :karma,
-      :about,
-    ])
+    ]
+
+    if !self.is_admin?
+      attrs.push :karma
+    end
+
+    attrs.push :about
+
+    h = super(:only => attrs)
     h[:avatar_url] = avatar_url
     h
   end

app/views/users/list.html.erb

@@ -12,11 +12,14 @@
         <% elsif user.is_new? %>
           class="new_user"
         <% end %>
-        ><%= user.username %></a>&nbsp;(<%= user.karma %>)
+        ><%= user.username %></a>
       <% if user.is_admin? %>
         (administrator)
-      <% elsif user.is_moderator? %>
-        (moderator)
+      <% else %>
+        (<%= user.karma %>)
+        <% if user.is_moderator? %>
+          (moderator)
+        <% end %>
       <% end %>
     </li>
   <% end %>

app/views/users/show.html.erb

@@ -78,13 +78,15 @@
     <br>
   <% end %>
 
-  <label class="required">Karma:</label>
-  <span class="d">
-    <%= @showing_user.karma %>, averaging <%=
-      number_with_precision(@showing_user.average_karma, :precision => 2) %>
-      per story/comment
-  </span>
-  <br>
+  <% if !@showing_user.is_admin? %>
+    <label class="required">Karma:</label>
+    <span class="d">
+      <%= @showing_user.karma %>, averaging <%=
+        number_with_precision(@showing_user.average_karma, :precision => 2) %>
+        per story/comment
+    </span>
+    <br>
+  <% end %>
 
   <label class="required">Stories Submitted:</label>
   <span class="d">

app/views/users/tree.html.erb

@@ -24,11 +24,14 @@
             <% elsif user.is_new? %>
               class="new_user"
             <% end %>
-            ><%= user.username %></a>&nbsp;(<%= user.karma %>)
+            ><%= user.username %></a>
           <% if user.is_admin? %>
             (administrator)
-          <% elsif user.is_moderator? %>
-            (moderator)
+          <% else %>
+            (<%= user.karma %>)
+            <% if user.is_moderator? %>
+              (moderator)
+            <% end %>
           <% end %>
           <% if (children = @users_by_parent[user.id]) %>
             <% # drill down deeper in the tree %>